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 biology living in harmony climate factors abiotic components organisms and environment

If a glass of water were surrounded by saturated air:

  1. The level of the water in the glass would slowly decrease

  2. The water's temperature would slowly increase

  3. The level of the water in the glass would not change

  4. The water's temperature would slowly decrease
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Saturated air contains the maximum amount of water vapor possible at a given temperature, meaning there is no net evaporation or condensation occurring at the water surface. Therefore, the water level remains constant because the rate of evaporation equals the rate of condensation.

Multiple choice chemistry substances in the surroundings - their states and properties measurement of density properties of substances fundamental and derived units

When air is cooled, its density increases. State whether true or false.

  1. True

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

 As on cooling volume of air decreases and its mass remains constant so its density increases as  Density = $\dfrac{mass}{volume}$

hence given statement is correct so option (A) is correct

Multiple choice chemistry substances in the surroundings - their states and properties measurement of density properties of substances fundamental and derived units

The hot air balloon rises because it is

  1. denser

  2. less dense

  3. equally dense

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

The hot air balloon has the hot air filled in it and the density of air is more than the hot air. So, the normal air or atmospheric air has the tendency to remain below than the hot air as the objects having the more density remains below than the objects having less density.

Multiple choice chemistry substances in the surroundings - their states and properties measurement of density properties of substances fundamental and derived units
Density of a material varies with temperature.

  1. True

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

Density of the material is defined as mass per unit volume. Since, volume is temperature dependent, increasing the temperature of the material (with few exceptions) decreases the density of material by increasing its volume. 

Hence, given statement is true.

Multiple choice chemistry substances in the surroundings - their states and properties measurement of density properties of substances fundamental and derived units

One litre of cool air weighs heavier than one litre of hot air 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
Explanation

Their exists less no. of molecules at the high temperature and high no. of molecules at the low temperature i.e. in the cold conditions.

Multiple choice chemistry substances in the surroundings - their states and properties measurement of density properties of substances fundamental and derived units

The clouds float in the atmosphere because of their low.

  1. Pressure

  2. Velocity

  3. Temperature

  4. Density
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
As the rule of thumb, you can assume that the things with less density float on things with higher density. And water do have less density than air that's the reason clouds float in the atmosphere.
Multiple choice movement in plants living world of plants - plant physiology biology

In hyponasty, there is increased growth on

  1. Shaded side

  2. Illuminated side

  3. Lower surface

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

Nastic movements are responses of plant parts to stimuli. Epinasty is the downward bending of a leaf resulting from greater growth of the upper side than of the lower side. Due to more growth on the upper side, the flower will open due to epinasty. The hyponasty is an upward bending of leaves resulting from increased growth on the lower surface.

Thus, the correct answer is option C.

Multiple choice evs eat when you need food poisoning and food preservation methods food spoilage, adulteration and preservation food spoilage and adulteration

Temperature inversion indicates a high degree of atmospheric

  1. Stability

  2. Instability

  3. Increase

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

Temperature inversion occurs when air near the ground is cooler than the air above it, which traps pollutants and indicates a high degree of atmospheric stability, as vertical mixing is suppressed.

Multiple choice evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

If there were no atmosphere around the earth, the temperature of the earth will ________.

  1. Increase

  2. Go on decreasing

  3. Increase during day and decrease during night

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

If there were no atmosphere around the earth, the temperature of the earth will increase during day and decrease during night. In the absence of atmosphere around the earth, it will be like a moon. There would be no life, no winds, no rains, no fires, no protection against harmful solar radiations. Due to absence of atmosphere around the moon, the temperature ranges from -190$^0$C to 110$^0$C. Air is a bad conductor of heat. The atmosphere has an average temperature of the earth almost steady during the day and night. It prevents sudden increase in temperature during the day time. Also, it decreases the rate of escape of heat during night time.

Thus, the correct answer is 'Increase during day and decrease during night.'

Multiple choice

It goes up but never goes down.

  1. sun

  2. your IQ

  3. your age

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

As time passes, your age only increases; it never goes backward. This is a common riddle about the nature of aging.