Answer: The correct answer is-
A. The air contains 50 percent of the moisture it can hold before precipitation occurs.
Humidity can be described as the presence of gaseous state of water (that is water vapor) in the atmosphere or air.
It indicates the chances of occurance of precipitation or fog in the weather.
50% humidity represents the relative humidity, indicating that air is 50% saturated with moisture, which could be held by air before precipitation occurs .
50% humidity indicates that before precipitation the air withholds 50% moisture and it is known as relative humidity.
Further Explanation:
The amount of moisture the air contains is defined by humidity. A particular amount of water vapor is present in the air which depends on the temperature of the air. The warmer air contains holds more water within it. The relative humidity is defined as the content of water vapor found in the air in relation to the amount it can actually hold. When the relative humidity is low, it implies that the air can comparatively withhold more moisture at that particular temperature and this makes the air dry.
For example, it is estimated that a cubic meter of air is able to hold 18grams of water as a maximum value at 20 degrees C. Similarly, at 25 degrees C, 22 grams of water can be held by the air. Therefore, if 22 grams of water is contained in a cubic meter of air at 25 degrees C, then there is 100% relative humidity. But if the same amount of air holds 11 grams of water, the relative humidity is said to be 50%.
The relative humidity plays a major role in maintaining our level of comfort. A 100% relative humidity means that there will be no evaporation of water and the moisture has fully saturated the air. For cooling, the body requires to evaporate the moisture from the skin. A low relative humidity enables the body to release moisture and make the body cooler. At 100% relative humidity, the body feels much hotter as compared to the actual temperature. This is because the body does not sweat to evaporate due to high humidity.
Learn More:
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Answer Details:
Grade: High School
Chapter: Relative Humidity
Subject: Biology
Keywords:
Humidity, relative humidity, water, water vapor, moisture, temperature, evaporation.
To modify the model of a given animal cell into a plant cell, it is required to add the cell wall around the cell membrane. It is also mandatory to construct large vacuoles in the cytoplasm with cell organelle chloroplast.
Plant cells may be defined as the type of eukaryotic cell that are the basic unit of life in organisms of the kingdom Plantae such as green plants, photosynthetic algae, etc.
The diagram illustrates the animal cell and asked to modify this into the plant cell. So, there is a requirement to add or edit this cell with plant cell organelles and its characteristics like cell wall, presence of chloroplast, large central vacuoles, etc.
Therefore, it is well described above.
To learn more about Plant cells, refer to the link:
#SPJ5
Answer:
To show the structures of a plant cell, add a cell wall around the membrane and increase the size of the vacuole inside the cell. Draw green ovals to represent chloroplasts.
Explanation:
answer on edmentum
Answer:
The energy used for muscular cont ration is ATP(adenosine triphosphate) This is the energy currency produced in the mitochondrial during cellular respiration.
During muscles contraction.The ATPs is broken down to ADP and Pi.
This is the breakdown of energy rich bonds binding phosphate ions with ATP.The breakdown of the bonds produced -32kJper the 3 bonds in ATP. Therefore as each bond is broken, energy is produced for muscle contraction
It is an exergonic reaction with production of heat.
Thus ATP is used for muscle contraction.ADP is the intermediate of ATP when one Phosphate is removed during the breakdown.
Thus the sequence is Adenosine triphosphate (3 phosphate) to Adenosine diphosphate(2 phosphate) to Adenosine monophosphate (1 phosphate)
Each bond breakin gives equal energy of -32kJpermol.
Explanation:
Explanation:
b. hamstring
c. hip flexor
d. soleurs