Physics · Geography

Atmospheric Physics and Humidity

935 Questions

Study the principles of atmospheric physics and humidity through these practice questions. Key subjects include the rate of evaporation, temperature inversions, and relative humidity measurements. These concepts are vital for geography and physics exams.

Evaporation and condensationRelative humidity conceptsAtmospheric pressure effectsTemperature inversion

Atmospheric Physics and Humidity Questions

Multiple choice transpiration major activities of living organisms biology

Transpiration is least in?

  1. Good soil moisture

  2. High wind velocity

  3. Dry environment

  4. High atmosphere Humidity
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Loss of water in the form of water vapour through the aerial parts of the plant body is called Transpiration. The transpiration rate falls as the relative humidity of the air around the plant increases.
So, the correct option is 'High atmosphere Humidity'.
Multiple choice transpiration major activities of living organisms biology

When the temperature of soil becomes $1^{\circ}$ $C$ then?

  1. Absorption of water increases

  2. Absorption of water drecreases

  3. Absorption of water remain unaffected

  4. Both B and C are correct
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

If the temperature of soil drops down drastically then absorption of water is decreased. This happens because one water starts changing its physical state from liquid to solid, so that passive absorption is decreased and the process of respiration stops at extreme temperatures. If respiration stops ATP will not be available for active absorption.

Multiple choice transpiration major activities of living organisms biology

Night recovery is caused by

  1. Condensation of water vapours

  2. Local rain

  3. Capillary movement

  4. Both A and C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

During night, the dried soil surface becomes wet. This is due to the water droplets that forms a thin layer due to condensation. This is called as night recovery. As the soil surface cools at night by radiating its heat, water vapour present in the atmosphere condenses. This results in the formation of water droplets on the soil. At night as the air cools to the dew point, condensation occurs and soil becomes wet without rain.

Thus, the correct answer is option A. 

Multiple choice landforms on earth and external processes general physical geography general knowledge

If a small raindrop falls through air ______.

  1. its velocity goes on increasing

  2. its velocity goes on decreasing

  3. its velocity goes on increasing for some time and then becomes constant

  4. it falls with constant speed for some time and then its velocity increases
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

As a raindrop falls, gravity accelerates it, but air resistance increases with velocity. Eventually, the drag force equals the gravitational force, and the raindrop reaches a constant terminal velocity.

Multiple choice botany transport in plant homeostasis in plants regulation of stomatal opening stomata

What will be the effects on stomata, if relative humidity is $100\%$ in atmosphere?

  1. Completely open

  2. Partially open

  3. No effects

  4. Closed
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

At 100% relative humidity, transpiration is inhibited, which often leads to stomatal closure to prevent water loss or maintain turgor, but in some contexts, it is stated they remain open.

Multiple choice physics the kinetic model of matter force and kinetic theory change of states phase change

State whether true or false:

Dew point is the temperature at which the gas at given atmospheric conditions becomes saturated.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The dew point is the temperature at which the water vapor in a sample of air at constant barometric pressure condenses into liquid water at the same rate at which it evaporates so dew point is a temperature at which the air becomes saturated.

Multiple choice physics the kinetic model of matter force and kinetic theory change of states phase change

A fan produces a feeling of comfort because :

  1. A fan supplies cool air

  2. Of the evaporation of sweat

  3. Fan increases the humidity in air

  4. Fan decreases the humidity in air
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A fan produces a feeling of comfort because of evaporation of sweat. As evaporation releases heat energy, and evaporation of sweat. Results in feeling cool in those body parts.

Multiple choice geography rivers, coasts and glaciation rivers rivers and their work exogenic forces

In air, amount of water vapor is classified as ______________.

  1. wind

  2. precipitation

  3. humidity

  4. temperature
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Evaporative cooling is restricted by atmospheric conditions. Humidity is the amount of water vapor in the air. The vapor content of air is measured with devices known as hygrometers. The measurements are usually expressed as specific humidity or percent relative humidity. The temperatures of the atmosphere and the water surface determine the equilibrium vapor pressure; 100% relative humidity occurs when the partial pressure of water vapor is equal to the equilibrium vapor pressure. This condition is often referred to as complete saturation.

Multiple choice geography rivers, coasts and glaciation rivers rivers and their work exogenic forces

What generally happens to air temperature as we move from the equator to the poles?

  1. It decreases

  2. It increases

  3. It remains constant

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The air temperature diminishes as we move from the equator towards the poles because the sun's ray's reach the earth at an angle outside the tropics. So the temperature decreases.

Multiple choice biology properties of natural resources the concept of bernoulli's principle variations in atmospheric pressure air exerts pressure

As one goes up from earth's surface, the temperature of air:

  1. increases

  2. decreases

  3. first increases and then decreases

  4. first decreases and then increases
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In the atmosphere, temperature decreases with altitude in the troposphere, but then increases in the stratosphere due to ozone absorption of UV radiation.

Multiple choice biology properties of natural resources the concept of bernoulli's principle variations in atmospheric pressure air exerts pressure

The experiment conducted using glass filled with water and card board indicates that _________. 

  1. Air has mass

  2. Air occupies space

  3. Air expands when heated

  4. Air exerts pressure
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The experiment conducted using glass filled with water and card board indicates that air exerts pressure.