Answer:
European populations are growing older, and African populations are growing younger.!!!
Explanation:
European populations are growing older, and African populations are growing younger. This is what is happening to European and African populations as a result of high dependency ratios. The correct option is D.
What are dependency ratios?The dependency ratio is the number of people who are too young or too old to work and therefore have to be supported by the working population in a given society. People who are too young to work include children under the age of 15, while those who are too old include those over the age of 65 years.
High dependency ratios can have a significant impact on the demographic characteristics of a population. When a population has a high dependency ratio, it implies that there are fewer working-age people in the population, and more people who are either too young or too old to work.
In Europe, there is a high percentage of older people, which means that the population is aging. In Africa, the population is younger because there are more working-age people who support the older and younger population. Consequently, the high dependency ratios lead to the growth of older populations in Europe and younger populations in Africa.
Therefore, the correct option is D.
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Evaluate: sin(30)
13
30
ته انه
o
1
2.
2x
13x
O 1
DONE
COS(60°) =
90°
60°
DONE
х what is the answer
Answer:
the answer is 1/2
Explanation:
sin30°= opp/hyp
= x/2x=1/2
how many years could a rock cycle have taken to complete?
Answer:
An individual would be unable to observe the changes in the rock cycle, which can last for tens of thousands or even millions of years.
I hope this helps you
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Which kind of directed pressure and confining pressure would result in stretching and thinning of the crust?.
What are the five special features earth has that allows life to exist?.
Answer:
1. WE ARE THE PERFECT DISTANCE FROM THE SUN NOT TO FAR NOT TO CLOSE
2. it is protected from harmful solar radiation by its magnetic field
3.the right chemical ingredients for life, including water and carbon.
4. NOT TO BIG
4. NOT TO SMALL
Explanation:
How will weathering and erosion most likely affect the Grand Tetons over the next 9 million years?
Answer: C)The Grand Tetons will become less steep and more rounded.
Explanation:
Sand is mined from beaches and valleys because it is an important ingredient for ______, which is used to build dams, homes, roads, and office buildings
Answer:
concrete
Explanation:
Mined Sand is an important ingredient for making concrete to build dams, homes, roads, and office buildings.
What is a mined sand?These are sand that extracted through an open pit or mined from beaches, inland dunes or dredged from ocean for different purpose.
These kind of mined sand have strong composition of making a strong concrete than the conventional sand that on the surface on the land.
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What is an adaptation?
a
traits that are less likely to be passed on to
offspring
b
traits that do not change when the environment
changes
C
traits that enhance an organism's ability to survive
and reproduce in its environment
d
traits that organisms develop over a lifetime, such
as strong muscles from working out
Answer:
b
traits that do not change when the environment
changes
Answer:
c
Explanation:
Traits that enhance an organism's ability to survive and reproduce in it's environment
Why do you think local traders refused to provide food to the Dakota on credit?
Local trader refused to provide food to Dakota on credit because of reliabilty and trust issue.
Who are Local Traders?A local trader can be defined as an individual who buys and sells products, securities or item either in retail or whosale with the aim of making profit.
Unlike foreign traders, they rely on local currencies for a complete transaction.
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How is the doppler effect used in doppler radar in meteorology.
Answer:
The Doppler radar uses what is known as the Doppler effect. In essence, the frequency of the radar signal increases when precipitation is moving towards the radar and decreases when precipitation is moving away from the radar. This can be vital in predicting tornadoes or gusts of wind.
Explanation:
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What was the origin of the territorial dispute over Taiwan?
A. People from both China and Japan settled on the island in the late 16th century. B. South Koreans fled to the island when the North Koreans drove them off the Inchon Peninsula. C. China developed a whaling trade on Taiwan, threatening Japan's dominance of that industry. D. Chinese nationalists fled to Taiwan when the People's Republic of China was established
Answer:
D. Chinese nationalists fled to Taiwan when the People's Republic of China was established.
Explanation:
I just took the quiz and got a 100%
Good Luck :)
I really need help with this problem please
A. hydrosphere.
B. biosphere.
C. lithosphere.
D. atmosphere.
Answer:
Its most likely choice B. Biosphere
Explanation:
Atmosphere (air) is definetly D. Hydrosphere (water) is B. Lithosphere (soil/rocks) is A. In this case the only option is choice B.
As light-colored ice and snow in polar regions melt due to warming, the loss of reflectivity leads to more melting and more warming. This is an example of ___.
As light-colored ice and snow in polar regions melt due to warming, the loss of reflectivity leads to more melting and more warming. This is an example of Positive feedback loop
What is positive feedback loop?A positive feedback is a response that occurs in nature, here, the results of a reaction is what enhance the reaction the more.
The results of the reaction produce more reactions.
Therefore, As light-colored ice and snow in polar regions melt due to warming, the loss of reflectivity leads to more melting and more warming. This is an example of Positive feedback loop.
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A satellite orbiting earth has a tangential velocity of 5000 m/s. earth’s mass is kg and its radius is m. which is the distance of the satellite from earth? 1,500,000 m 2,240,000 m 9,608,000 m 16,008,000 m
The distance of the satellite form the earth is:
9,608,000 m (Option C) in Standard form, this is written as 9.6 x 10[tex]^{6}[/tex].
An Orbiting Satellite is a satellite that goes around the earth in an elliptical path known as an orbit.
To calculate the distance of the satellite from the earth we must equalize the force of Gravity to Centripetal Force given that these are the two forces that are at play here.
Step 1:
Equation that equalizes Gravity to Centripetality is:
G = mM/r² = m(v²/r)
Note that G = 6.67 x 10[tex]^{-11}[/tex] (This is a gravitational constant.)
m is the Mass of the Satellite
M is Mass of the Earth
r is the distance of the satellite from the center of the earth
v is the satellites tangential velocity
Step 2 - Rearrange the formula and substitute the numbers above to get r
r = G (m/v²) = (6.67 x 10[tex]^{-11}[/tex]) (6 x10[tex]^{24}[/tex]/5000²) =
= 1.6 x 10[tex]^{7}[/tex]m
Recall that form our postulation above, this is the satellites distance form the center of the earth.
To get it's distance form the earth's surface, we must know remove the value of the radius of the earth from the calculation. Where radius of the earth is given a r'
Hence,
r' = r - R = 1.6 x 10[tex]^{7}[/tex]m - 6.4 x 10[tex]^{6}[/tex]m
= 9.6 x [tex]10^{6}[/tex]m or 9,608,000 m
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The Lorax complained to the Once-ler one last time. Then he left. Why did he leave?
He left behind a stone on which it was written, useless.
Who is The Lorax?The message that the Lorax was trying to portray was that the industries are better for the world, but the same goes on for the plants and trees and one should know their importance.
The Lorax complained to the Once-ler one last time. Then he left because the vegetation was going to be cut down and eliminated.
There was a corporation that destroyed the environment of the Truffula woods and ceased to exist by consuming every individual Truffula tree, So all the people who used to live there and were a part of the community moved to a different place.
All of them were heartbroken and sad but before living in the place Lorax took their stone on which the word useless was written, and he left it behind him.
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In general, with the exception of the very recent time period, the temperature in the past 10,000 years has been ______.
The temperature in the past 10,000 years has been considerably minimum compared to what we are witnessing in the present period.
What is the effect of climate on temperature?Climate change has been a feature of human society since the dawn of agriculture 10,000 years ago. As a result of anthropogenic (manmade) activities, these climatic shifts have frequently had severe effects on humans.
One of these human-caused anthropogenic factors have resulted in global warming, which has increased average temperatures including temperature extremes.
Therefore, we can conclude that the effects of human activities have caused the minimum temperature in the past 10,000 years to shift to its extremes.
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Which atmospheric gases are responsible for maintaining a livable temperature on earth?.
Answer:
H2O and CO2
Explanation:
Question 6 (1 point)
Which Southeast Asia country is oil-rich
Cambodia
Brunei
Laos
Singapore
In a region of a continent that has not experienced significant uplift in 200 million years, a geologist would expect rivers to be characterized by
In a location of a continent that has not undergone important upthrust in 200 million years, a geologist would anticipate rivers to be characterised by Broad floodplains and travelling consecutive course.
Who is geologist?Geologist is a person that study the solid, liquid, and gaseous stuff that makes up Earth and other terrestrial planets, as well as the processes that shape them.
When there is upliftment, the stream or river has a steep gradient and forms a V-shaped valley, which is impossible to do in level ground.
Because it's a flat location, there's less weathering, so the chances of a natural leve forming are slim, and the third possibility, a rapid, which is a minor waterfall that originates in a highland area, is also out.
Therefore, there is no impediment to vary its path and constantly follow a straight path, a vast flood plain with a straight course is achievable in a flat location.
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1 mile south 1 mile west 1 mile north where are you.
Answer:
You are where you started
Explanation:
If you walk 1 mile south, then 1 mile west, and then 1 mile north, you will end up in the exact same position you started. This is due to the curvature of the Earth.
what is the difference between a mid ocean ridge and a rift valley?
Answer:
The major difference between different types is what type of plate the divergent boundary is between. If the boundary is found between two continental plates you are left with a rift valley. ... If two oceanic plates begin moving away from each other it creates a mid-oceanic ridge.
Explanation:
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Do you think that the 24-hour wind pattern along the coastline of Hawaii would occur in other places? If so, where? Construct an argument to explain your reasoning.
The 24-hour wind pattern was able to occur along the coastline of Hawaii because its falls where the wind blows.
What is the 24-hour wind pattern?In Hawaii, along its coastline, the region have both wet side and dry side which are known as the trade winds
These wind patterns are from from wind blowing from high-pressure zones in the north Pacific whiich pump a cool and moist winds down onto the island's slopes.
These trade winds affect every location found at 30°north and south of the equator.
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Rosa Parks was an African American woman and seamstress who lived in Alabama. One evening during the 1950s, while returning home on a bus, she defied segregation laws and refused to give up her seat for a White man. This incident, and the events that followed it, essentially birthed the:
Answer:
National efforts to end segregation.
Explanation:
Rosa Parks sparked a fighter in the souls of fellow victims of segregation
Which factor had the greatest impact on starting the Industrial Revolution in England?
I believe the answer is: natural resources
If the probability of rain tomorrow is 40%, what is the probability that it will not rain tomorrow? Express your answer as a percent.
Answer:A simple application of the definition of a conditional probability.
Let the following hold;
B= event that it rains tomorrow
A= event that it rains today
Now we assume that B and A are not independent as most competent localized meteorological models are non-Markovian. Then
P(B|A)=P(A∩B)P(A)=0.20.4=0.5
Note that P(B) was not needed given the other probabilities.
Now if per precise local weather dynamics, A and B are independent events, then
P(B|A)=P(B)=0.45
Explanation:
Answer:
60%
Explanation:
60%
In the United States, the _____ is the agency that performs the job of analyzing weather data, running models, preparing weather maps and charts, and predicting the weather on a global and national basis
Answer: National Weather Service
Explanation:
In the United States, the National Weather Service is the agency that performs the job of analyzing weather data, running models, preparing weather maps and charts, and predicting the weather on a global and national basis
How does business decisions affect the business cycle
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Factors Affecting a business cycle:
Business InvestmentsConsumer ExpectationsExternal ShocksIntrest RatesWhich country has a coastline on the pacific ocean?.
Answer:
Honduras is considered to have a coastline on the Pacific Ocean since it borders the Gulf of Fonseca on the southern side.
Due to its southern boundary with the Gulf of Fonseca, Honduras is regarded as having a coastline on the Pacific Ocean.
The area where land meets the ocean, or as a line defining the border between the land and the shoreline, is known as the coast, sometimes known as the coastline or seashore.
The terrain of the area's surroundings has an impact on shorelines, as do water-induced erosion processes like wave action. The sort of beach that is produced depends on the rock and soil's geological makeup. The length of the coastline on Earth is around 620,000 km (390,000 mi). Natural ecosystems' coasts are significant zones and frequently the site of a diverse spectrum of biodiversity.
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simplify each the following fractions
25
---
30
Ice Choose one: A. is denser than water. B. has a low albedo, which explains why it floats. C. is transparent if pure, but milky white if it's cracked or contains air bubbles. D. is no longer slippery at extremely cold temperatures.
Ice is transparent if pure, but milky white if it's cracked or contains air bubbles. Thus, Option C is correct statement.
What is the color of Ice?
The ice appears to be blue because the water is turquoise blue.The color of the ice deepens with increasing intensity and purity.
Ice that appears white usually contains a large amount of air bubbles, cracks, or solid particles.
Thus, Ice is transparent if pure, but milky white if it's cracked or contains air bubbles. Thus, Option C is correct statement.
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How is arctic sea ice different from glaciers and icebergs?.
Answer:
The most basic difference is that sea ice forms from salty ocean water, whereas icebergs, glaciers, and lake ice form from fresh water or snow. Sea ice grows, forms, and melts strictly in the ocean. Glaciers are considered land ice, and icebergs are chunks of ice that break off of glaciers and fall into the ocean.
Explanation:
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