Tag: biology

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Multiple choice biology water a precious resource water cycle earth's energy budget bio-geo chemical cycles in nature solar energy and its applications

Identify the correct sequence of stages in the water cycle.

  1. Evaporation, condensation, precipitation

  2. Condensation, precipitation, evaporation

  3. Evaporation, precipitation, condensation

  4. Precipitation, evaporation, condensation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Answer is option A i.e. "Evaporation, condensation, precipitation"
There are 3 main stages involved in water cycle i.e. evaporation, condensation, precipitation and runoff. The water cycle starts with evaporation followed by condensation where water vapor converts int liquid water and finally precipitation where liquid water falls from sky in form of rains, snow, hail, etc.
Multiple choice biology water a precious resource water cycle earth's energy budget bio-geo chemical cycles in nature solar energy and its applications

Which of the following is an advantage of occurrence of the water cycle? 

  1. Recharging of ground water

  2. Recharging of water bodies

  3. Sufficient rainfall

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The water cycle is essential for maintaining life on Earth. It facilitates the recharging of groundwater aquifers, replenishes surface water bodies, and ensures the distribution of freshwater through rainfall.

Multiple choice biology water a precious resource water cycle earth's energy budget bio-geo chemical cycles in nature solar energy and its applications

Which of the following process is responsible for the smoke-like vapour which comes out of the mouth in winter?

  1. Precipitation

  2. Evaporation

  3. Condensation

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • When you exhale when it's cold outside, the water vapour in your breath condenses into lots of tiny droplets of liquid water and ice (solid water) that you can see in the air as a cloud, similar to fog which appears smoke like. This process is called condensation.
  • Hence Condensation process is responsible for the smoke-like vapour which comes out of the mouth in winter.
  • So, the correct answer is 'Condensation'.
Multiple choice biology water a precious resource water cycle earth's energy budget bio-geo chemical cycles in nature solar energy and its applications

The water vapour which enters into air to form clouds in the sky are obtained by which of the following process?

  1. Condensation

  2. Evaporation

  3. Precipitation

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase.
  • By the process of evaporation, the water vapour enters into the air to form clouds in the sky. 
  • The water vapour in the air condenses to form tiny water droplets which are the basis of clouds.
  • Hence the process by which water vapour enters into the air to form clouds in the sky is Evaporation.
  • So, the correct answer is 'Evaporation'.
Multiple choice biology water a precious resource water cycle earth's energy budget bio-geo chemical cycles in nature solar energy and its applications

Fog that most often forms as warm rain falls into a cold layer of surface air is called:

  1. Radiation fog

  2. Evaporation (mixing) fog

  3. Advection fog

  4. Upslope fog
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Evaporation (mixing) fog occurs when warm rain falls through a layer of colder air. The evaporation of the rain adds moisture to the cold air, which then saturates and condenses into fog.

Multiple choice biology water a precious resource water cycle earth's energy budget bio-geo chemical cycles in nature solar energy and its applications

When water changes from a liquid to a vapor, we call this process:

  1. Freezing

  2. Condensation

  3. Sublimation

  4. Evaporation
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The transition from liquid water to water vapor is defined as evaporation. Sublimation is the transition from solid to gas, while condensation is gas to liquid.

Multiple choice biology water a precious resource water cycle earth's energy budget bio-geo chemical cycles in nature solar energy and its applications

The processes of condensation and freezing:

  1. Both release sensible heat into the environment

  2. Both absorb sensible heat from the environment

  3. Do not affect the temperature of their surroundings

  4. Do not involve energy transport
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Both condensation and freezing are exothermic processes. They release latent heat into the surrounding environment as water changes from a higher energy state (vapor/liquid) to a lower energy state (liquid/solid).

Multiple choice biology water a precious resource water cycle earth's energy budget bio-geo chemical cycles in nature solar energy and its applications

Evaporation is a _____________ process.

  1. Cooling

  2. Heating

  3. Can't tell - it depends on the temperature

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

Evaporation is a cooling process because the molecules with the highest kinetic energy escape the liquid phase, leaving behind molecules with lower average kinetic energy, which lowers the temperature of the remaining liquid.

Multiple choice biology water a precious resource water cycle earth's energy budget bio-geo chemical cycles in nature solar energy and its applications

When the air temperature is below freezing, the saturation vapor pressure over water is.

  1. Equal to zero

  2. Less than the saturation vapor pressure over ice

  3. Greater than the saturation vapor pressure over ice

  4. Equal to the saturation vapor pressure over ice
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

At temperatures below freezing, ice crystals have a lower saturation vapor pressure than supercooled water droplets. This difference is the basis for the Bergeron process in cloud physics.

Multiple choice biology water a precious resource water cycle earth's energy budget bio-geo chemical cycles in nature solar energy and its applications

What would be temperature of gaseous hydrocarbon in condensation?

  1. Higher temperature

  2. Lower temperature

  3. Normal temperature

  4. Extremely high temperature
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Condensation is the process where a gas turns into a liquid. This phase change requires the removal of heat, meaning the substance must be at a lower temperature than its boiling point to transition.