Tag: droughts, floods and water conservation

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Questions Related to droughts, floods and water conservation

Multiple choice chemistry water in our life how can we conserve water? droughts, floods and water conservation conservation of water and its importance and methods

Which of the following is correct during drought?

(1) The soil conserves water by avoiding evaporation and transpiration
(2) The soil remains wet.
(3) The ground water may not become scarce.
(4) The level of water in ponds and wells of the region goes down and some of them may even dry up.
(5) In drought conditions, it is not difficult to get food and fodder.

  1. (1) and (2)

  2. (1) and (3)

  3. (4) only

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

During drought, the following is correct.

(1) The soil continues to lose water by evaporation and transpiration
(2) The soil becomes dry.
(3) The ground water may also become scarce.
(4) The level of water in ponds and wells of the region goes down and some of them may even dry up.
(5) In drought conditions, it is difficult to get food and fodder.

Multiple choice chemistry water in our life how can we conserve water? droughts, floods and water conservation conservation of water and its importance and methods

Situation in which there is less water availability for agricultural purposes and no enough food in an area to feed people is called :

  1. flood

  2. monsoon

  3. drought

  4. monsoon winds
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
A flood is an overflow of water that submerges land that is usually dry. Usually, the term monsoon is used to refer to the rainy phase of a seasonally changing pattern, although technically there is also a dry phase.
 A drought is a period of below-average precipitation in a given region, resulting in prolonged shortages in the water supply, whether atmospheric, surface water or ground water.
 An interchange of air between the land and oceans due to unequal heating and cooling of continents and oceans is known as monsoon winds.
Multiple choice chemistry water in our life how can we conserve water? droughts, floods and water conservation conservation of water and its importance and methods

Which of the following is responsible for higher level of floods and droughts?

  1. wind storms

  2. lower precipitation

  3. higher precipitation

  4. more wastage of water
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A Higher level of floods and droughts are due to higher precipitation.A drought is a particular period of below-average precipitation in a given region, which  results in prolonged shortages in its water supply, whether surface water, atmospheric water, or ground water.

Multiple choice chemistry water in our life how can we conserve water? droughts, floods and water conservation conservation of water and its importance and methods

Which of the following is/are a way/(s) of water conservation?

  1. One way of increasing the availability of water is to collect rainwater and store it for later use.

  2. One way of increasing the availability of water is to collect rainwater when it is required for use.

  3. Both of the above

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

The following is a way of water conservation. Collect rainwater and store it for later use.  It increases the availability of water.

Multiple choice chemistry water in our life how can we conserve water? droughts, floods and water conservation conservation of water and its importance and methods

Explain the effect of water scarcity on plants.

  1. In the scarcity of water,the plants become dry and die.

  2. In the scarcity of water,the plants shrink but not die.

  3. In the scarcity of water,the plants become dry and hard.

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

Water is essential for photosynthesis and maintaining turgor pressure in plants; without it, plants wilt, dry out, and eventually die.

Multiple choice chemistry water in our life how can we conserve water? droughts, floods and water conservation conservation of water and its importance and methods

Rainwater harvesting is collecting & storing rainwater, which includes activities aimed at:

  1. harvesting surface water

  2. groundwater

  3. prevention of losses through evaporation and seepage

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

In general, water harvesting is the activity of direct collection of rainwater. The rainwater collected can be stored for direct use or can be recharged into the ground water. Rain is the first form of water that we know in the hydrological cycle, hence is a primary source of water for us.It is also the infiltration of surface water into subsurface aquifers (before it is lost as surface runoff). 

Multiple choice chemistry water in our life how can we conserve water? droughts, floods and water conservation conservation of water and its importance and methods

Which one of the following is a sign of water scarcity?

  1. Dried fields having cracks on them

  2. Nutrient deficient plants

  3. Struggle to obtain water from bore wells

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Water scarcity is the lack of fresh water resources to meet water demand. It is mainly due to lack of water or due to a lack of adequate machinery or tools to supply water.
  • The effects of water scarcity can be grouped into these 4 broad categories. They are Health, Hunger, Education, and Poverty.
  • The sign of water scarcity includes the following. They are Dried fields having cracks on them, Nutrient deficient plants and Struggle to obtain water from bore wells.
  • So, the correct answer is 'All of the above'.
Multiple choice chemistry water in our life how can we conserve water? droughts, floods and water conservation conservation of water and its importance and methods

Water harvesting is done by ____________ processes.

  1. rainwater

  2. groundwater

  3. both A and B

  4. atmospheric water
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Water Harvesting
It means storing rain where it falls or storing the run off in your own village or town. And taking measures to keep that water clean by not allowing polluting activities to take place in our locality.
It can be done by two major processes:
1. Rainwater harvesting
It is a method of collection and storage of rainwater into natural reservoirs or tanks, or the infiltration of surface water into subsurface aquifers.
2. Groundwater harvesting 
Groundwater harvesting is a method to save water placed under the ground to control the groundwater flow in an aquifer, and to raise water table.
Multiple choice chemistry water in our life how can we conserve water? droughts, floods and water conservation conservation of water and its importance and methods

Cloud seeding is a technique used, to induce rain that was first used by the USA in 1946. It has also been done in Karnataka and other places in India. What is it?

  1. An agricultural practice that depends on clouds

  2. Introduction of particles in clouds to increase condensation

  3. Making clouds and placing them in the sky.

  4. Trimming the clouds into seed like structures
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

During rainfall, water droplets condense onto one another, causing the droplets to grow. When these water droplets get too heavy to stay suspended in the cloud, they fall to earth as rain.


In 1946, USA developed a technique called cloud seeding, in which they increase the process of condensation by introducing particles in the cloud. With the increase in condensation, droplets start forming at faster rate and hence, increase the rainfall. 

Multiple choice chemistry water in our life how can we conserve water? droughts, floods and water conservation conservation of water and its importance and methods

Which of the following will be an advantage of inter-linking the rivers in India?

  1. Lot of people will be displaced

  2. Floods will take place uniformly throughout the country

  3. Surplus water will be distributed uniformly

  4. The cost of implementain will be very high
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Surplus water will be distributed uniformly. The Indian rivers inter-link is a proposed large scale civil engineering project that aims to effectively manage water resources in India by linking Indian rivers and tunnels and so reduce persistent floods in some parts and water shortage in other parts of India.