Environment 2020 Flashcards
What are the factors for exposure to benzene pollution?
Automobile exhaust, Tobacco smoke, Wood burning
Correct answer: 1, 2 and 3 only
What is benzene?
An aromatic compound with a single six-member unsaturated carbon ring
What are the physical characteristics of benzene?
Colourless or light yellow liquid, dissolves slightly in water, highly flammable
What are some uses of benzene?
- Plastics
- Resins
- Nylon
- Synthetic fibres
- Rubbers
- Lubricants
- Dyes
- Detergents
- Drugs
- Pesticides
What is the health impact of chronic exposure to benzene?
Can reduce production of red and white blood cells, resulting in aplastic anaemia
Who leads an elephant group?
The oldest female
What is the maximum gestation period for elephants?
22 months
At what age can an elephant normally go on calving?
40 years
Which state in India has the highest elephant population?
Karnataka
What is Project Elephant?
A Central Government sponsored scheme launched in February 1992
Which protected areas are located in the Cauvery Basin?
Nagarhole National Park, Sathyamangalam Tiger Reserve, Wayanad Wildlife Sanctuary
Correct answer: 1, 3 and 4 only
Which of the following are birds?
Ceylon Frogmouth, Coppersmith Barbet, Grey Chinned Minivet, White-Throated Redstart
Which protected area is known for the conservation of Barasingha?
Kanha National Park
Where can Musk Deer be found in its natural habitat?
Askot Wildlife Sanctuary, Gangotri National Park
Correct answer: 1 and 2 only
What materials are preferred for rural road construction to ensure environmental sustainability?
Copper slag, Cold mix asphalt technology, Geotextiles
Correct answer: 1, 2 and 3 only
What can steel slag be used for?
- Construction of base road
- Improvement of agricultural soil
- Production of cement
Which statements are correct regarding coal ash?
1, 2 and 3
Correct answer: 1, 2 and 3
What is the use of biochar in farming?
Can be used as part of the growing medium, promotes nitrogen fixing microorganisms, retains water longer
Correct answer: 1, 2 and 3
What is the implication of a plant species being placed under Schedule VI of the Wildlife Protection Act, 1972?
A licence is required to cultivate that plant
What is the effect of biochar on soil?
Improves water retention in soil
Biochar’s porous nature allows it to hold water, making it available to plants for longer periods.
What does Schedule VI of the Wildlife Protection Act, 1972 imply for a plant species?
A licence is required to cultivate that plant
Schedule VI includes plants that need special protection due to their rarity or ecological importance.
What are the advantages of zero tillage in agriculture?
Sowing of wheat without burning residue, direct planting of paddy seeds, carbon sequestration
Zero tillage reduces costs, soil erosion, and irrigation needs.
Which materials can be used as raw materials for biofuel production according to India’s National Policy on Biofuels?
Cassava, damaged wheat grains, rotten potatoes, sugar beet
The policy allows the use of various agricultural waste and by-products for ethanol production.
What does the term ‘social cost of carbon’ refer to?
Monetary value of long-term damage from a tonne of CO2 emissions
It helps in understanding the economic impacts of decisions affecting greenhouse gas emissions.
