Tag: conservation of fuels

Questions Related to conservation of fuels

Urbanization, Illegal logging, Agriculture, Subsistence Farming are the causes of ______.

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

  1. water depletion

  2. forest depletion

  3. both A and B

  4. none of these

Show answer
Correct Option: C
Explanation:
Both $A$ and $B$ are the results of Urbanization, Illegal logging, Agriculture, Subsistence Farming. 

Water depletion, a term often defined as long-term water-level decline caused by sustained groundwater pumping, is a key issue associated with groundwater use.

Deforestation, clearance or clearing is the removal of a forest. 

Examples of deforestation include conversion of forestland to farms, ranches, or urban use. 

The most concentrated deforestation occurs in tropical rainforests.


Hence the option C is correct.

Cycle or walk is the method to conserve ___________ .

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

  1. fuels

  2. water

  3. both $A$ and $B$

  4. none of these

Show answer
Correct Option: A
Explanation:
Cycle is a human-powered, pedal-driven, single-track vehicle, having two wheels attached to a frame, one behind the other. A bicycle rider is called a cyclist, or bicyclist.

Walking also required muscular force. It is a form of mechanical work.
So both are used to conserve fuels.

Option A is correct.

If materials (resources) are finished then people will struggle for ______.

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

  1. LPG

  2. CNG

  3. both a and b

  4. none of these

Show answer
Correct Option: C
Explanation:

C is the correct option.if resources are finished then people will struggle for both CNG and LPG as both are obtained from fossils.They cannot be replenished soon.

Fossil Fuels are sources of energy that are formed from the accumulated remains of living organisms that were buried millions of years ago. 

An increase in content of carbon dioxide in environment will not cause:

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

  1. more heat to be retained by environment

  2. increase in photosynthesis of plants

  3. global warming

  4. abundance of desert plants

Show answer
Correct Option: B,D
Explanation:

An increase in content of carbon dioxide in an environment will not cause increase in photosynthesis of plants and abundance of desert plants.

Carbon dioxide is a greenhouse gas, so it traps the heat radiation and causes greenhouse effect.
Increase in concentration of green house gas will result in increase in average temperature of the earth. Thus it causes global warming.

The problems for criticism about large dams are that they:

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

  1. contribute enormously to deforestation and the loss of biological diversity

  2. displace large number of peasants and trebles without proper rehabilitation

  3. swallow up huge amounts of public money without the generation of proportionate benefits

  4. all of the above

Show answer
Correct Option: D

Chipko Andolan is concerned with :

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

  1. conservation of natural resources

  2. development of new breeds of forest plants

  3. zoological survey of India

  4. forest conservation

Show answer
Correct Option: D
Explanation:

In the 1970s, an organized resistance to the destruction of forests spread throughout India and came to be known as the Chipko movement. The name of the movement comes from the word 'embrace', as the villagers hugged the trees, and prevented the contractors' from felling them.

Which one of the following is not an ideal solution for tackling water shortages?

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

  1. Controlling population growth

  2. Conserving water in irrigation

  3. Controlling water pollution

  4. Drilling large number of deep bore wells

Show answer
Correct Option: D
Explanation:

Drilling large number of deep bore wells,

It is not an ideal solution for tackling water shortage.
Rain water harvesting and ground water recharging is the need of the hour. Roof top rain water harvesting are being taken up in urban areas. In roof top harvesting u r to collect rain water and  using a filter clean it, then send it to the aquifer through a tube well or dug well. In open field u can recharge ground water storing the rain water in numerous tanks, ponds, contour  trench etc disallowing the rain water to drain to river and finally to ocean. If  tube wells are drilled inside the tanks and  ponds, more rain water can be recharged into the aquifer.

Floods can be prevented by:

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

  1. afforestation

  2. cutting the forests

  3. filling the land

  4. removing the top soil

Show answer
Correct Option: A
Explanation:
Afforestation means planting trees. 

As we know, the roots of the trees help to hold soil layer firmly.

It is evident that it helps not to make soil loose and prevents erosion. Thus, by planting more and more trees, the top layer of soil becomes less prone to erosion by wind, water or anything likely. 

Thus, it prevents erosion and helps in soil conservation.

Afforestation involves the planting of trees in a drainage basin to increase interception and storage while reducing surface runoff. This reduces a rivers discharge and so makes it less likely to flood.

Option A is correct.

Which of the following is a recently originated problem of environment?

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

  1. Global warming

  2. Ozone depletion

  3. Greenhouse effect

  4. All of these

Show answer
Correct Option: D
Explanation:
Global warming, also referred to as climate change, is the observed century-scale rise in the average temperature of the Earth's climate system  and its related effects.

Ozone layer depletion is simply the wearing out (reduction) of the amount of ozone in the stratosphere. Unlike pollution, which has many types and causes, ozone depletion has been pinned down to one major human activity. 

Depletion begins when CFC's get into the stratosphere.

The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without its atmosphere.

Hence the option D is correct.

When we consider the conservation of forests, we need to look at the :

evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

  1. people who are humanists and conscious about human rights

  2. industrialists who use the various forests produce

  3. the people who live in or around forests

  4. the forest department of the Government, the industrialists and the people who live in or around forests

Show answer
Correct Option: D
Explanation:
The option D is correct.

Some of the steps we can take to conserve our forest resources are as follows :

Regulated and Planned Cutting of Trees.

Control over Forest Fire.

Reforestation and Afforestation.

Protection of Forests.

Proper utilisation of Forest and Forests Products.