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The Reni village of Garhwal is famous for
Option: 1 Monocultures of pine, teak and eucalyptus.
Option: 2 Chipko Movement.
Option: 3 Extensive biodiversity.
Option: 4 Participation of local people in efficient management of forests.

The Reni village of Garhwal is famous for Chipko Movement.

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Safeer PP

Switching off unnecessary lights and fans and repairing leaking taps correctly defines which term of 5R's ?
Option: 1 Recycle
Option: 2 Reuse
Option: 3 Repurpose
Option: 4 Reduce

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Safeer PP

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The biggest source of energy on Earth’s surface is
Option: 1 Biomass
Option: 2 Solar radiations
Option: 3 Tides
Option: 4  Winds

Solar radiations are the biggest source of energy on the earth surface.

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Safeer PP

A diagram of traditional water harvesting system is given below :
The statement which defines the system and its parts is  
Option: 1 This is an ideal setting of the Khadin system and A = Catchment area; B = Saline area & C = Shallow dugwell
 
Option: 2 This is an ideal setting of the Shallow dugwell system and A = Catchment area; B = Saline area and C = Khadin
 
Option: 3 This is an ideal setting of Catchement area and A = Khadin, B = Saline area and C = Shallow dugwell
 
Option: 4 This is showing Saline area and A = Catchment area; B = Khadin and C = Shallow dugwell

This is an ideal setting of the Khadin system and A = Catchment area; B = Saline area & C = Shallow dug well is the correct answer.
 

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Safeer PP

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Bandharas and Tals are age old water harvesting concepts / structures found in
Option: 1 Bihar
Option: 2 Maharashtra
Option: 3 Tamil Nadu
Option: 4 Rajasthan

Maharashtra

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Safeer PP

The most poisonous product formed by incomplete combustion of fossil fuels is
Option: 1 Carbon dioxide
Option: 2 Nitrogen dioxide
Option: 3 Carbon monoxide
Option: 4 Sulphur dioxide

Carbon monoxide

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Safeer PP

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Incomplete combusting of coal and petroleum : (A) increases air pollution. (B) increases efficiency of machines. (C) reduces global warming. (D) produce poisonous gases. The correct option is :
Option: 1 (A) and (B)
Option: 2 (A) and (D)
Option: 3 (B) and (C)
Option: 4 (C) and (D)

(A) and (D) is the correct answer.

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Safeer PP

It is important to make small check dams across the flooded gullies because they

(i) hold water for irrigation

(ii) hold water and prevent soil erosion

(iii) recharge groundwater

(iv) hold water permanently

 

(a) (i) and (iv)

(b) (ii) and (iii)

(c) (iii) and (iv)

(d) (ii) and (iv)

  • It is important to make small check dams across the flooded gullies because they recharge groundwater.
  • These small dams assist in withholding water.  This gives dampness to the vegetation cover, subsequently preventing soil erosion.
  • Therefore, statements (ii) and (iii) are correct.

Hence, option (b) is correct.

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infoexpert23

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Select the eco-friendly activity among the following.

(a) Using a car for transportation

(b) Using polybags for shopping

(c) Using dyes for colouring clothes

(d) Using windmills to generate power for irrigation

 

  • Eco-friendly means earth-friendly or not harmful to the environment.
  • The car uses petrol or diesel, which is non-renewable. So, it is not eco-friendly.
  • Polybags are non-biodegradable. It is also not eco-friendly
  • Dyes are synthetic chemical compounds, so they are not eco-friendly
  • The wind is a renewable source of energy. So, using windmills to generate power for irrigation is an eco-friendly activity.

Hence, option (d) is correct.

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infoexpert23

Pick the right combination of terms which has no fossil fuel.

(a) Wind, ocean and coal

(b) Kerosene, wind and tide

(c) Wind, wood, sun

(d) Petroleum, wood, sun

  • Fossil fuel is a general term for buried combustible geologic deposits of natural materials formed from decayed plants and animals that have been converted to crude oil, coal, natural gas, or heavy oils by exposure to heat and pressure in the earth's crust over hundreds of millions of years.
  • Wind, wood, and sun have no fossil fuel.
  • Coal, petroleum and kerosene are fossil fuels in the given list.

Hence, option (c) is correct.

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infoexpert23

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