Railway Science (Environment – Environmental Conservation)

Total Questions: 53

1. Soil erosion is one of the main threats to the environment. Which of the following helps in preventing soil erosion can be helpful? [RRC Group D 17/08/2022 (Afternoon)]

Correct Answer: (a) contour tillage
Solution:

Types of Soil Erosion - Sheet Erosion, Gully Erosion, Rill erosion, and Stream Bank Erosion. Causes - Anthropogenic activities, Soil texture, Slope, Intensity of Rainfall, Deforestation, wind. Pedogenesis is the process of soil formation.

2. Soil degradation is one of the major environmental problems being faced these days. A wide range of techniques to conserve soil are mentioned below. Select the INCORRECT option [RRC Group D 17/08/2022 (Evening)]

Correct Answer: (d) Overgrazing
Solution:

Prevention of Soil Erosion - Contour tillage (the practice of tilling slope land), Mulching, Afforestation, Crop Rotation, Strip Cropping, and Intercropping, No-Till Farming, Cover crops, Terrace Farming, and Organic Farming.

3. Which of the following should be done to conserve coal and petroleum? [RRC Group D 18/08/2022 (Morning)]

Correct Answer: (d) Do not overuse air conditioning or heating systems.
Solution:

To conserve coal and petroleum - Use energy saving CFL (compact fluorescent lamp), Use pressure cookers for cooking purposes, use of biogas as domestic fuel, Prefer the stair over the lift. Highest Coal Reserve (Jharkhand). Highest Petroleum Reserves (western Offshore - Mumbai).

4. Select the INCORRECT option with reference to the Chipko Andolan. [RRC Group D 18/08/2022 (Evening)]

Correct Answer: (c) It was a violent movement to save the trees
Solution:

The Chipko movement is a nonviolent social and environmental movement led by Sundarlal Bahuguna (by rural Indian peasants in 1973 in Uttar Pradesh’s Chamoli district (now Uttarakhand) (People associated - Gaura Devi, Sudesha Devi, Bachni Devi, Chandi Prasad Bhatt, Govind Singh Rawat, Dhoom Singh Negi, Shamsher Singh Bisht and Ghanshyam Raturi).

5. What is the name of the phenomenon of wearing down of relief variations of the surface of the Earth through erosion? [RRC Group D 22/08/2022 (Afternoon)]

Correct Answer: (a) Gradation
Solution:

Germination - the fundamental process by which different plant species grow from a single seed into a plant. Solidification - a process in which atoms are converted into an ordered solid state from a liquid-disordered state. Eruption is an explosion of steam and lava from a volcano.

6. Which of the following is/are useful effort(s) for sustainability of resources? [Group - D 22/08/2022 (Evening)]

a. Switching off unnecessary lights and fans
b. Using lift instead of stairs
c. Repairing leaking taps for conserving water
d. Using empty containers to store things
e. Going to school by your own car instead of cycling

Correct Answer: (d) a,c and d
Solution:

Sustainable resources - natural resources (air and climate, energy, water, biodiversity) that are renewable and can be replenished at the same rate, or faster than they are consumed. Sustainable Development Goals (SDGs) India Index - NITI Aayog. Global Sustainable Development Report (GSDR)- United Nations.

7. Forests can be conserved by which of the following factors? [RRC Group D 23/08/2022 (Evening)]

a) Regular and planned cutting of trees
b) control of forest fires
c) Construction of roads in forests
d) Monoculture Planting
e) Promotion of afforestation and reforestation
f) Proper use of forest and forest products
g) Clearing land for cattle grazing

Correct Answer: (c) a, b, e and f
Solution:

Afforestation is the conversion of abandoned and degraded agricultural lands into forests, while reforestation is the replantation of trees in deforested land. It provides a supply of timber, fruit, and fodder for cattle apart from crop production. Silvology is the biological science of studying forests and woodlands.

8. One of the goals of the Namami Gange Programme is to: [RRC Group D 24/08/2022 (Morning)]

Correct Answer: (b) revitalize the Ganga River
Solution:

Namami Gange Programme - A flagship program inaugurated in June 2014, by the Union government, under the Ministry of Jal Shakti. Aims - Protection and cleaning of the river Ganga, Sewage treatment infrastructure, Riverfront development, River surface cleaning, biodiversity, Afforestation, Public awareness, Industrial effluent monitoring, and Ganga gram. The Ganga Action Plan was launched in 1986.

9. Amrita Devi Bishnoi National Award for Wildlife Conservation' is given in the memory of Amrita Devi Bishnoi. She sacrificed her life to save which trees and where? [RRC Group D 26/08/2022 (Morning)]

Correct Answer: (a) Khejri trees, Rajasthan
Solution:

Bishnoi Movement - It was started in the 18th century in Rajasthan by the Bishnoi community. Amrita Devi stood against the King of Jodhpur to protect the environment. This movement inspired the Chipko Movement (led by Sunder Lal Bahuguna) in the 20th Century.
The Government of India established the “Amrita Devi Bishnoi Wildlife Protection Award” for contributing to the protection of wildlife and environment conservation respectively.

10. In the conservation of forests, stakeholders play a very important role. Who among the following is not a stakeholder in forests? [RRC Group D 26/08/2022 (Evening)]

Correct Answer: (c) People living in urban areas
Solution:

World Wildlife Conservation Day - 4 December. Madhya Pradesh has the highest forest cover as per the area followed by Arunachal Pradesh.