Ques. No 26. The ___ is the total number of humans on Earth at a given time and the study of population is called ___.
A. The World population, Demography
B. Population, Biography
C. World pollution, Seismography
D. World population, Populography
Answer: A. The world population, DemographyAnswer:
Ques. No 27. State True or False:
i) The key to creating industrial ecosystems is to re-conceptualize wastes as products.
ii) The Kalundborg industrial park is located in India.
A. i. True, ii. False
B. i. True, ii. True
C. i. False, ii. True
D. i. False, ii. False
Answer: i. True, ii. FalseAnswer:
Ques. No 28. From an ecosystem viewpoint, the pollutants can be classified into two basic types’ ___ and ___.
A. Non bio degradable, Bio degradable
B. Degradable, Bio degradable
C. Non degradable, Degradable
D. Gaseous pollutants, Fluoride compounds
Answer: A. Non bio degradable, Bio degradableAnswer:
Ques. No 29. The Japanese cities of ___ and ___ were bombed during World War II.
A. Hiroshima, Tokyo
B. Hiroshima, Nagasaki
C. Nagasaki, Tokyo
D. Yokohama, Nagoya
Answer: B. Hiroshima, NagasakiAnswer:
Ques. No 30. A plant operating at 40% efficiency generates ___ of waste heat for every ___ of fuel burnt.
A. 7.16 joules, 8.41 joules
B. 160.7 joules, 410.8 joules
C. 16.7 joules, 41.8 joules
D. 1.67 joules, 4.18 joules
Answer: C. 16.7 joules, 41.8 joulesAnswer:
Ques. No 31. State True or False:
i) Global warming is the increase in the average temperature of the Earth’s near-surface air and oceans.
ii) La Niña means “the little boy”.
A. i. True, ii.True
B. i. True, ii. False
C. i. False, ii.True
D. i. False, ii. False
Answer: B. i. True, ii. FalseAnswer:
Ques. No 32. In ___ ozone hole was observed in the sky over Antarctica – here ozone layer thickness was reduced by ___ percent.
A. 1997, 23
B. 2009, 13
C. 1879, 3
D. 1979, 30
Answer: D. 1979, 30Answer:
Ques. No 33. State True or False:
i) Increased UV radiation in the lower atmosphere, called the troposphere.
ii) El Niño and La Niña are important temperature fluctuations in the surface waters of the tropical Eastern Pacific Ocean.
A. i. True, ii. True
B. i. True, ii. False
C. i. False, ii. True
D. i. False, ii. False
Answer: A. i. True, ii. TrueAnswer:
Ques. No 34. The Ministry of Environment and Forests, Government of India has prohibited the handling of ___ based dyes from ___ onwards.
A. Copper, 1893
B. Bronze, 1973
C. Benzidine, 1993
D. Iron, 1945
Answer: C. Benzidine, 1993Answer:
Ques. No 35. State True or False:
i) Water must be colorless by which the dyeing will be carried out in the textile industry.
ii) The primary treatment of effluent is aimed at reducing the strength of the wastewater.
A. i. True, ii. True
B. i. True, ii. False
C. i. False, ii. True
D. i. False, ii. False
Answer: A. i. True, ii. TrueAnswer:
Conclusion
Environmental studies is an important and interesting subject that can help us learn about the world around us and how we can protect it.
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