Physics · Geography

Atmospheric Physics and Humidity

878 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 zoology global environmental change causes of greenhouse effect global warming adaptation in animals

If there is no $CO _2$ in the atmosphere, what would happen to the earth's temperature?

  1. It would, be less than the present.

  2. It would,be the same as present.

  3. It would be higher than the present.
  4. It depends on the $0 _2$ content of air.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When carbon dioxide and other air pollutants are collected in the atmosphere they absorb sunlight that has bounced from the earth’s surface. This leads to an increase in the earth's average surface temperature and is called global warming. When there is no carbon dioxide in the atmosphere, the temperature of the Earth's surface will be less than the present temperature. 

Thus, the correct answer is option A. 

Multiple choice physics energy production causes of greenhouse effect global warming adaptation in animals

The increase of carbon dioxide gas in atmosphere will cause

  1. decrease in temperature

  2. increase in temperature

  3. no change in temperature

  4. nothing can be said
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Carbon dioxide is main cause of green house effect. The greenhouse effect is the rise in temperature that the Earth experiences because certain gases in the atmosphere (water vapor, carbondioxide, nitrous oxide, ozone, methane, for example) trap energy that comes from the sun.
Thus, increase of carbon dioxide gas in atmosphere will cause increase in temperature.

Multiple choice commercial applications management of natural resources unequal distribution of resources protecting our environment rules are for everyone

Conning occurs in neutral atmosphere, when wind velocity is greater than

  1. 32 km per hour

  2. 42 km per hour

  3. 52 km per hour

  4. 72 km per hour
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Coning is a type of plume behavior in air pollution meteorology. It typically occurs under neutral stability conditions when wind speeds are moderate to high, often cited as greater than 32 km/h.

Multiple choice geography major domains of the earth atmosphere and its structures what is around us? the atmosphere the earth's structure components of earth earth and structure

Which of the following statements is wrong?

  1. Absolute humidity is expressed in grams per cubic metre of air
  2. 1$^o$C of temperature is reduced with every 165 metres of height

  3. When the temperature of air increases, its capacity to hold moisture decreases

  4. The higher the temperature the lower is the air pressure
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When air temperature increases, the capacity of air to hold moisture (water vapor) actually increases, not decreases. This is a fundamental principle of meteorology.

Multiple choice geography earth as a planet atmosphere and its structures what is around us? the atmosphere the earth's structure components of earth earth and structure

Because of the compressibility of air, more than $50$% of the mass of the atmosphere is in its _________________.

  1. Lower $3.6$ miles
  2. Below $18$ mile level
  3. Beyond $18$ mile level up to $40$ miles
  4. Beyond $40$ miles
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Due to gravity, air is most dense near the surface. More than 50% of the Earth's atmospheric mass is concentrated within the first 5-6 kilometers (roughly 3.6 miles) of altitude.

Multiple choice evs let's play with water law of constant proportion - i law of constant proportion law of definite proportions

When you get in your car in the morning and are breathing warmer air, the warm air comes into contact with the cooler windshield and forms a foggy window. It is an example of :

  1. evaporation

  2. sublimation

  3. condensation

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

Condensation is the process by which water vapor in the air is changed into liquid water.Cloud formation is caused by condensation of water vapor in the atmosphere condensing into a liquid state. Thus Option C is correct.

Multiple choice evs let's play with water law of constant proportion - i law of constant proportion law of definite proportions

The fog appeared on sun glasses when it get in contact with steam

  1. Condensation

  2. Evaporation

  3. Sublimation

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

The fog appeared on sun glasses when gets in front of hot steam due to condensation.Condensation is the process where the vapor converts into liquid.
Hence option A is correct.

Multiple choice evs let's play with water law of constant proportion - i law of constant proportion law of definite proportions

The mirror in the bathroom during a shower becomes foggy due to:

  1. condensation

  2. evaporation

  3. sublimation

  4. both A and B
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The mirror in the bathroom during a shower becomes foggy because warmer water vapor in the air hits the cooler surface of the mirror. This phenomenon is due to condensation. Hence option A is correct.
Multiple choice physics motion and measurement physical quantities units - definitions and systems physical quantities like mass and weight

An atmosphere:

  1. Is a unit of pressure

  2. Is a unit of force

  3. Gives an idea of the composition of air

  4. Is the height above which there is no atmosphere
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An atmosphere is defined as the unit of pressure because we use to write the atmospheric pressure in terms of the $atm$.


So, it is a unit of pressure. Option $A$ is correct.

Multiple choice physics upthrust in fluids, archimedes' principle and floatation applications of floatation principle of floatation and its applications when do objects float on water?

The hot air balloon rises because it has a gas that is

  1. denser than air

  2. less dense than air

  3. equally dense as air

  4. the given statement is wrong
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hot air balloon has hot air inside.  Also hot air is less dense than cooler air which surrounds the hot air balloon. This means hot air is lighter than equal volume of cold air.  Hence due to buoyant force of cold air, the balloon rises.

Multiple choice physics upthrust in fluids, archimedes' principle and floatation applications of floatation principle of floatation and its applications when do objects float on water?

A hot air balloon rises because it is filled with a gas :

  1. denser than air

  2. less dense than air

  3. as dense as air

  4. the given statement is wrong
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

More denser objects stays at the bottom.

Since, the hot air balloon rises because it is filled with a gas which is less dense than the air .So, the air has the tendency to move down and the balloon has the tendency to move in the upward direction.

Multiple choice evs atmosphere- wind weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate

One litre of cold air weighs heavier than the dry air (1 Lit) because of the

  1. Increased number of collisions between the molecules

  2. Increased number of molecules at low temperature

  3. Greater energy of molecules at high temperature

  4. Lower energy of molecules at high temperature
Reveal answer Fill a bubble to check yourself
B Correct answer
Multiple choice evs atmosphere- wind weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate

The wind-chill factor:

  1. Relates body heat loss with wind to an equivalent temperature with no wind

  2. Indicates the temperature at which water freezes on exposed skin

  3. Takes into account humidity and air temperature in expressing the current air temperature

  4. Tells farmers when to protect crops from a freeze
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The wind-chill factor is a measure of the rate of heat loss from exposed skin due to the combined effects of low temperature and wind speed, expressed as an equivalent temperature.