MCQOPTIONS
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MCQOPTIONS
This section includes 155 Mcqs, each offering curated multiple-choice questions to sharpen your Environmental Science knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
“Roaring forties” is the term used to describe which of the following winds?$ |
| A. | East-to-west air winds in the southern hemisphere |
| B. | West-to east air winds in the northern hemisphere |
| C. | East-to-west air winds in the northern hemisphere |
| D. | West-to-east air winds in the southern hemisphere |
| Answer» E. | |
| 152. |
What is the region of mild and irregular wind in the equatorial region known as? |
| A. | Trade winds |
| B. | Westerlies |
| C. | Doldrums |
| D. | Easterlies |
| Answer» D. Easterlies | |
| 153. |
What does the ratio of the mass of water vapour to mass of air indicate? |
| A. | Absolute humidity |
| B. | Specific humidity |
| C. | Relative humidity |
| D. | Approximate humidity |
| Answer» C. Relative humidity | |
| 154. |
In the lower layers of atmosphere, what range of wavelengths of light is predominant? |
| A. | Less than 100 nm |
| B. | Greater than 300 nm |
| C. | Between 100-300 nm |
| D. | All wavelengths are equally present |
| Answer» C. Between 100-300 nm | |
| 155. |
At what concentration (in ppm), is nitrogen present in the atmosphere? |
| A. | 780,840 |
| B. | 390,420 |
| C. | 78,084 |
| D. | 900,000 |
| Answer» B. 390,420 | |