InterviewSolution
Saved Bookmarks
InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
What is the most abundant element in the atmosphere? |
|
Answer» Nitrogen is the most abundant element in the atmosphere. |
|
| 52. |
The percentage of CO2 in the atmosphere is A) 0.04%B) 0.4% C) 0.08% D) None of the above |
|
Answer» Correct option is A) 0.04% |
|
| 53. |
Nitrogen makes its way back into the atmosphere through a process called A) Ammonification B) Denitrification C) Assimilation D) Nitrification |
|
Answer» B) Denitrification |
|
| 54. |
Which of the following is an inert gas ? A) Nitrogen B) Oxygen C) Methane D) Xenon |
|
Answer» Correct option is D) Xenon |
|
| 55. |
Name the three processes by which oxygen is lost from the atmosphere. |
|
Answer» By combustion, respiration, and formation of oxides of nitrogen are the main processes by which oxygen is lost. |
|
| 56. |
Why are root nodules useful for plants? |
|
Answer» In root nodules, nitrogen fixing bacteria Rhizobium’ is present which fixes the atmospheric nitrogen and make it available to the plant for its growth. |
|
| 57. |
Large amount of fresh water is present in A) Seas B) Rivers C) Polar ice caps D) Lakes |
|
Answer» C) Polar ice caps |
|
| 58. |
Very few animals and plants are present in deserts. Because A) There is sand B) There is very little water C) There are no roads D) It is hot in desert |
|
Answer» B) There is very little water |
|
| 59. |
Which of the following is NOT an eco – friendly activity ? A) Growing plants in waste lands B) Minimizing electricity consumption C) Using compost in fields D) Maximising vehicles usage |
|
Answer» D) Maximising vehicles usage |
|
| 60. |
The troposphere extends from earth’s surface to a height of approximately A) 1000m B) 8848m C) 100 km D) 10 km |
|
Answer» Correct option is D) 10 km |
|
| 61. |
Why could we say that biogeochemical cycles are in “balance”? |
Answer»
|
|
| 62. |
What is the importance of different biogeochemical cycles in the nature? |
Answer»
|
|
| 63. |
What are biogeochemical cycles? |
|
Answer» The cycles that involve the flow of nutrients in on earth from environment to organisms and back through certain pathways are known as biogeochemical cycles. |
|
| 64. |
Expand B.O.D. |
|
Answer» Biological Oxygen Demand. |
|
| 65. |
Direct exposure of U.V radiation causes A) Skin cancer B) Destroys marine life C) Damage to crops D) All the above |
|
Answer» D) All the above |
|
| 66. |
What is the main concern of montreal protocol? |
|
Answer» To control the use of gases which have destructive effect on ozone layer. |
|
| 67. |
Montreal protocol focuses on A) Protect ozone layer B) Control and phase out of ozone depleting factors C) Control and phase out CFC and halocarbons D) All of these |
|
Answer» D) All of these |
|
| 68. |
Copenhagen meeting on revise of montreal protocol was held in the year ………………. A) 1994 B) 1992 C) 1995 D) 1996 |
|
Answer» Correct option is B) 1992 |
|
| 69. |
What happens if nitrogen fixation is stopped ? 1) Nitrogen in the soil is reduced 2) Nitrogen will not be available to plant 3) Plant and animal would die 4) Depletion of nitrogen in the environment A) 1, 2 B) 3, 4 C) 1, 3 D) 1, 4 |
|
Answer» Correct option is A) 1, 2 |
|