Xeric environment is characterised by [1994]a)precipitationb)low atmospheric humidityc)extremes of temperatured)high rate of vapourisationCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

Xeric environment means dry conditions or low atmospheric humidity and lack of precipitation. Also the temperature variations depend on several other variables like altitude, latitude and hemisphere. High rates of vapourisation is not a characteristic of environment but a consequence of low atmospheric humidity.

Answer

The environment or habitat which is extremely dry , lacks moisture is known as xeric environment . deserts provide xeric environment.

Answer

Xeric environment is characterized by low atmospheric humidity

An xeric environment refers to a type of habitat or region that experiences extreme dryness and scarcity of water. These environments are typically found in arid and semi-arid regions, such as deserts and certain grasslands. Xeric environments are characterized by several factors, including low atmospheric humidity.

Definition of atmospheric humidity
Atmospheric humidity refers to the amount of water vapor present in the air. It is typically measured as relative humidity, which represents the percentage of moisture in the air relative to the maximum amount the air could hold at a given temperature. High relative humidity indicates a large amount of moisture in the air, while low relative humidity indicates a small amount of moisture.

Low atmospheric humidity in xeric environments
Xeric environments are known for their low atmospheric humidity due to the lack of water availability. The scarcity of water sources, such as rivers, lakes, and groundwater, coupled with high temperatures and low precipitation, leads to low atmospheric humidity in these regions. Here's why:

1. Lack of water sources: Xeric environments often have limited or no permanent water bodies. The absence of rivers, lakes, and other water sources means there is less water available to evaporate into the atmosphere, leading to low atmospheric humidity.

2. High evaporation rates: Xeric environments are characterized by high temperatures and intense solar radiation. These conditions promote rapid evaporation, causing the available moisture to be quickly released into the atmosphere. As a result, the air becomes drier, leading to low atmospheric humidity.

3. Low precipitation: Xeric environments receive minimal annual rainfall, and precipitation events are infrequent. The limited rainfall does not provide enough moisture to replenish the water vapor in the atmosphere, contributing to low atmospheric humidity.

4. Adaptations of xeric organisms: Plants and animals in xeric environments have evolved various adaptations to survive in low atmospheric humidity. These adaptations include water-conserving features such as reduced leaf surface area, thick waxy cuticles, and the ability to store water.

In conclusion, xeric environments are characterized by low atmospheric humidity due to the lack of water sources, high evaporation rates, low precipitation, and the adaptations of organisms to survive in arid conditions.

Answer

Correct answer is option 'b'

Answer

Xeric condition means low atmospheric humidity

Answer

Xeric environment is characterised by low atmospheric humidity.
Xeric environment is the environment of moisture deficiency. It is found in the desert. It is characterized by the less annual precipitation, low rate of vaporization, low atmospheric humidity and low temperature at night and high during the daytime.

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