How many millimetres (equivalent depth) of water are
contained in a soil profile 1 metre deep if the mass water
content of the upper 400 mm depth is 15% and that of the
lower 600 mm is 20%. The bulk density in the upper layer is
1300 kg m- and in the lower layer is 1500 kg m-?. Assume Pw
= 1000 kg m’How much water does the soil contain (in
cubic
metres) per 1.5 hectares of land?
ri
The equivalent depth of water in the soil is 180 mm of water and the volumetric water content of soil is 3870 cubic meter/ 1.5 hectare of soil.
What is the formula to calculate the equivalent depth of water in a soil?The equivalent depth of water in a soil is calculated using the formula below:
equivalent depth of water = water content × depth of soilThe depth of soil profile 1 = 400 mm
The depth of soil profile 2 = 600 mm
Equivalent depth of water in the soil = 15% × 400 mm + 20% × 600 mm
Equivalent depth of water in the soil = 60 mm + 120 mm = 180 mm
Therefore, the equivalent depth of water in the soil is 1800 mm of water.
The volumetric water content of the soil is calculated using the formula below:
Volumetric water content = water content × bulk density of soil/density of water × height of soilHeight of soil profile 1 = 0.4 m
Height of soil profile 2 = 0.6 m
Volumetric water content of soil profile 1 = 15% × 1300/1000 × 0.4 m = 0.078 cubic meter/square metre of soil
Volumetric water content of soil profile 2 = 20% × 1500/1000 × 0.6 m = 0.18 cubic meter/square metre of soil
Sum of volumetric water content of soil = 0.078 + 0.18 = 0.258 cubic meter/square metre of soil.
1 hectare = 10000 square metre
Thus, 1.5 hectares = 15000 square metre
Volumetric water content of soil = 0.258 × 15000 cubic meter/ 1.5 hectare of soil
Volumetric water content of soil = 3870 cubic meter/ 1.5 hectare of soil
Thus, the equivalent depth of water in the soil is 180 mm of water and the volumetric water content of soil is 3870 cubic meter/ 1.5 hectare of soil.
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Name:-Subham
Gender:-Male
Age:-19
Hey dude!
How's life & what's ur favourite x song, if you have one?
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How can an invasive species be a
danger to an ecosystem?
A. They can out compete native species for
resources.
B. They have a significantly large effect on the
ecosystem.
C. They are not as attractive as native species.
Answer:
a
Explanation:
Invasive species can change the food web in an ecosystem by destroying or replacing native food sources. The invasive species may provide little to no food value for wildlife. Invasive species can also alter the abundance or diversity of species that are important habitat for native wildlife.
Answer: A. They can out compete native species for resources.
Someone who actually knows please.
Question:9. What type of weather front would be responsible for the following forecast: “A period of heavy rain within the next 24 hours followed by warmer temperatures. Thunderstorms and possibly thundersnow from the period of 24 to 30 hours from now with temperatures dropping by 20-25˚ F and barometric pressure dropping by 15-20 mb. Snow beginning 30-36 hours from now, accumulation of 10-13 inches possible. Cooler temperatures and clear skies in 2 days.”
The type of climate front would be responsible for the forecast is a warm front followed by a cold front.
Hot frontA warm front has warm, moist air behind it. This warm air rises above the cold air because it is less dense and forms clouds along the front. As the warm front approaches, there is a greater drop in pressure and cloudiness, the temperature remains constant or rises slowly, unless it drops a little because of the rain.
Cold frontIn a cold front, warm air is pushed out and replaced by cold air. As in the case of the warm front, the vertical structure of the hot air will determine the reactions with reference to cloudiness and precipitation. As a common cold front approaches there is heavy rain and there may be strong gusts of wind or violent storms. With the passage of the front, there is an increase in pressure, a sudden and large drop in temperature, an increase in the strength of the wind and a variation in its direction.
Whit this information ,we can conclude that the type of climate front would be responsible for the forecast is a warm front followed by a cold front.
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neglected tropical diseases and the causative agent
What is mRNA?
A. a snippet of the nuclear envelope
B. a transcript of information from the ER C. a piece of DNA that has broken off
D. a transcript of information from DNA
Answer:
D
Explanation:
mRNA is gotten from the transcription of DNA molecules that form the Euchromatin.
Describe the relationship between immunity (Passive and Active immunity) and vaccines. // (Please answer with full sentences!!)
Answer:
Active immunity occurs when our own immune system is responsible for protecting us from a pathogen. Passive immunity occurs when we are protected from a pathogen by immunity gained from someone else.
Explanation:
Hope I helped
a change in the structure of DNA in the egg cell could result in a
Answer:
ExplanationA mutation is a change in a genetic sequence. Mutations include changes as small as the substitution of a single DNA building block, or nucleotide base,
Which of the following statements is true?
Blood glucose levels are controlled by the digestive system.
Damage to the kidneys will cause a buildup of waste in the body.
Oxygen is dropped off and picked up by blood vessels in the heart.
Digestion and breathing is controlled by the cerebrum.
Answer:
A for sure
Explanation:
In order for some molecules to move in and out of the cell, channels are embedded in the cell membrane. What compound forms these channels? A. protein B. fats C. lipid
Answer:
A protein
Explanation:
Proteins make up the second major chemical component of plasma membranes. Integral proteins are embedded in the plasma membrane and may span all or part of the membrane. Integral proteins may serve as channels or pumps to move materials into or out of the cell.
Answer: A protein
Explanation:
Removing pathogens and other substances from tools or surfaces is
a. Fumigation
b. Decontamination
c. Extermination
d. Promoting growth of bacteria
Answer:
B is the answer
Explanation:
answer on top
Water has many of its properties and can act as a major liquid in our bodies due to its high specific heat. However, if water had a LOW heat capacity, its ability to serve as a liquid to maintain homeostasis would be altered. A student makes several claims about the impact the altered heat capacity would have on its properties. Which of these claims would NOT be supported by the change in specific heat capacity of water?
The claim which would not be supported by the change in specific heat capacity of water include reduction in body temperature and dehydration.
What is Specific heat capacity?This is defined as the quantity of heat needed to raise a substance's temperature by 1 degree Celsius.
If water has a low specific heat capacity then the body temperature will increase which will lead to an increase in dehydration.
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Which basic function of life is demonstrated by a single-celled organism using cilia, flagella, or pseudopodia?
O A growth
OB. movement
O C. homeostasis
D. response to stimuli
Answer:
C. Homeostasis
Explanation:
Every organism needs to regulate it's internal environment.
Which of the following will not reduce water scarcity?
A.Install low-flow shower heads.
B.Use car washes that recycle water.
C.Take more baths instead of showers.
D.Wash dishes in a fully loaded dishwasher.
The following will not reduce water scarcity "Take more baths instead of showers." Option C. This is further explained below.
What is water scarcity?Generally, Water scarcity can refer to scarcity in availability owing to the physical scarcity of water due to institutions' inability to assure a consistent supply.
In conclusion, taking showers does not consume more water than baths.
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HELP ME OUT PLS!!!!!!!!
4) Choose the correct answer
A) a Main sequence star in spectral class B
B) a Super Giant in Spectral Class K
C) a Main Sequence star in spectral class Kor M
D) a White Dwarf in spectral class B
Answer:
Giant
Explanation:
See picture for explanation:
ONLY CORRECT ANSWER PLEASE. 93 POINTS AVAILABLE ONLY IF YOU ANSWER THIS CORRECTLY!!!
What is this structure? This structure's function is to transport, but I would like to know its exact name. This is a structure like muscle cell, red blood cell, or palisade mesophyll cell and not an organelle like chloroplasts or nucleus.
Answer:
it looks like a villi to me
How does the type of data breach affect the actions?
Select 1 type of data breach and the course of action that should be taken.
Answer:
Data breaches hurt both individuals and organizations by compromising sensitive information. For the individual who is a victim of stolen data, this can often lead to headaches: changing passwords frequently, enacting credit freezes or identity monitoring, and so on.
Explanation:
Which of these is NOT one of the
macronutrients found in nearly all living
organisms?
A. Nitrogen
B. Hydrogen
C. Phosphorus
D. Silica
Answer:
C. Phosphorus
Explanation:
hope this helped :)
What is the function of spines on cacti
The spines of the cactus have several functions, which are the following:
To defend them from possible predators: inside the body of the plants there is a great deal of water; if herbivores could access it, these plants would not survive.
To provide them with shade: it is true that not much, but it is enough so that the loss of water by evaporation is minimal.
Reflect sunlight: many species have white spines.
After receiving a stimulus, the _____ send(s) signals to the appropriate areas of the body.
A. sensory receptors
B. integrating center
C. effectors
Answer:
B. integrating center
Explanation:Answer:
The integrating center, generally a region of the brain called the hypothalamus, signals an effector (e.g. muscles or an organ ) to respond to the stimuli. Positive feedback enhances or accelerates output created by an activated stimulus.
Answer: Sensory receptors
;)
Explanation:
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Part F
How could you increase the total energy of the spring-and-weight system?
HELP ME OUT PLS!!!!!!!!!!!!!!!
13. The diagram at right shows one position of the earth as it makes its way around the sun.
Which locations are experiencing winter?
A)
B)
C)
D)
E)
14. At which location would a person experience the longest number of daylight hours?
A)
B)
C)
D)
E)
Answer:
B
Explanation:
during winter earth become the nearest of center
___ energy uses steam from large underground reservoirs of heated water
Answer:
GEOTHERMAL POWER PLANTS use steam to produce electricity. The steam comes from reservoirs of hot water found a few miles or more below the earth's surface.The steam rotates a turbine that activates a generator, which produces electricity.
Explanation:
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what is the use of biology in the laboratory?
QUESTION:
what is the use of biology in the laboratory?
ANSWER:
room where biological studies, analyzes and experiments are carried out. Based on the Occupational Health and Safety Act (ArbSchG), Infection Protection Act (IfSG) and Home Work Act (HAG), the Biological Agents Ordinance (BioStoffV) applies.
What is the importance of biology laboratory?
Biological Science Laboratory Apparatus is essential for meeting our basic needs of food, clothing, shelter, health, energy, clean air, water and soil. Biological Science Laboratory Apparatus enrich the quality of life in numerous ways by providing new solutions to problems in health and materials and energy usage.
(science) please help almost due
Answer:
A. D.
Explanation:
Body too large is a fallacy, makes no logical sense obviously. Fossil would remain. which is the same case answer B is, as sediment changing to rock, obviously not going to 100% destroy fossil, sedimentary rock actually preserves fossils, quite nicely.
When used in in situ hybridization, RNA probes are _____ to the sample's RNA.
a. Complementary b. Identical
c. Supplementary d. Similar
Answer:
A. Complementary
Explanation:
complementary to the sample's RNA
hope this helps
Which of the following involves making man-made products from natural resources?
A. Agriculture
B. Mining
C. Manufacturing
D. Urbanization
I need help fast! if you help me i will give brainliest
1. Suppose the frequency of the dominant allele in a population is 75%. What is the frequency of the recessive allele?
25%
hope it helps...!!!
What two systems send messages in the body?
Answer: the nervous system and the endocrine system
Explanation:
When one organism is helped and has no effect on the other, the relationship is called __________.
Question 4 options:
competition
mutualism
commensalism
adaptation
Answer:
Commensalism
Explanation:
explain how helped you on the other relationship