Tag: safety and first aid

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Questions Related to safety and first aid

Multiple choice evs sources of water the lithosphere and the hydrosphere first aid safety and first aid

Primary source of water is

  1. Rivers

  2. Ground water

  3. Lakes

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

The primary source of water on the surface of the earth is rain. Rain is mainly formed due to the precipitation of vapours accumulated due to evaporation. Some part of the rainwater is available as ground water which can be used in case of adversity.

So, the correct answer is option D.

Multiple choice evs - i sources of water the lithosphere and the hydrosphere first aid safety and first aid

The continuous movement of water on surface of the earth is described as

  1. Water movement

  2. Natural flow

  3. Water cycle

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

The water cycle involves the continuous movement of water on, above and below the surface of the Earth. The surface water evaporates by the process of evaporation which condenses into tiny droplets which falls on the earth as rain as a source of the atmospheric cycle. Surface waters and atmospheric cycles are thus overlaps in hydrological cycles. Thus, the correct answer is option C.

Multiple choice evs sources of water the lithosphere and the hydrosphere first aid safety and first aid

All of the following are the properties of water except ____________.

  1. Hydrophilic properties

  2. Hydrophobic properties

  3. Very good solvent

  4. Density as a solid is less than that as a liquid

  5. Strong surface tension
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Water is a polar molecule, making it hydrophilic and a good solvent. It also exhibits high surface tension. Hydrophobic properties are characteristic of non-polar substances, not water.

Multiple choice evs sources of water the lithosphere and the hydrosphere first aid safety and first aid

Which of the following plays a very important role in causing rainfall?

  1. Factories

  2. Vehicles

  3. Plants

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

Transpiration is the process in which plants lose water as water vapor during photosynthesis. This water is added to the moisture in air saturating it and hence generating rainfall. Thus the correct answer is option C.

Multiple choice evs - i sources of water the lithosphere and the hydrosphere first aid safety and first aid

Water cycles through the biosphere in all of the following processes except     

  1. Precipitation

  2. Condensation

  3. Transpiration

  4. Decomposition

  5. Runoff
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
A. When the water vapour in the atmosphere condenses and fall in the form of rain, hail, snow etc., it is called precipitation.
B. Condensation is the conversion of a gas into liquid when the temperature is lowered down.
C. Transpiration is the loss of water in vapour form from the surface of leaves through minute pores called stomata.
D. Decomposition is the process of breakdown of complex organic materials into simpler ones.
E. Runoff is the overflow or the flow of excess water over the earth's surface from any water source.
Hence, water cycles through the biosphere in all of the given processes except decomposition.
So, the correct answer is 'Decomposition'.
Multiple choice evs - i sources of water the lithosphere and the hydrosphere first aid safety and first aid

In the water cycle, the process by which water is returned to the atmosphere is known as 

  1. Runoff

  2. Condensation

  3. Evaporation

  4. Precipitation

  5. Photosynthesis
Reveal answer Fill a bubble to check yourself
C,E Correct answer
Explanation

Evaporation and photosynthesis are two process through which water is returned to the atmosphere during water cycle.

So, the correct answer is 'Evaporation and Photosynthesis'

Multiple choice evs - i sources of water the lithosphere and the hydrosphere first aid safety and first aid

Which of the following processes represents X?
River -> X -> Clouds

  1. Respiration

  2. Transpiration

  3. Combustion

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

In the given figure, X is evaporation. Evaporation is the process of conversion of water into vapour. Water vapour rises up into the atmosphere and cools down to form clouds.

So, the correct answer is option D.

Multiple choice biology water and air and their importance the lithosphere and the hydrosphere first aid safety and first aid

Which of the following explains drought?

  1. Low rainfall than requirement

  2. High rainfall than requirement

  3. Low pressure in atmosphere

  4. High pressure in atmosphere
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A drought is a period of drier-than-normal conditions that results in water-related problems, primarily caused by a significant deficit in expected rainfall.

Multiple choice evs sources of water the lithosphere and the hydrosphere first aid safety and first aid

Which of the following are included in hydrosphere?

  1. Liquid and frozen surface waters

  2. Groundwater held in soil and rock

  3. Atmospheric water vapor

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

The hydrosphere is the total amount of water present on the planet which includes the surface water, underground water and in the air (Atmosphere) as water vapor. Hydrosphere can be liquid, ice or vapor. 

So the correct option is 'all of the above'.