MCQOPTIONS
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MCQOPTIONS
This section includes 63 Mcqs, each offering curated multiple-choice questions to sharpen your 12th knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Fresh water accounts for only ____ percent. |
| A. | 1.7 |
| B. | 2.7 |
| C. | 3.7 |
| D. | 4.7 |
| Answer» C. 3.7 | |
| 52. |
The process in which different crops are grown in alternate rows and are sown at different times to protect the soil from rain wash, is known as |
| A. | Crop rotation |
| B. | Intercropping |
| C. | Terrace farming |
| D. | Contour cropping |
| Answer» C. Terrace farming | |
| 53. |
The process in which bare ground between plants is covered with a layer of organic matter like straw, is called |
| A. | Mulching |
| B. | Contour carriers |
| C. | Shelter belts |
| D. | Intercropping |
| Answer» B. Contour carriers | |
| 54. |
The following factor(s) is (are) responsible for degradation of soil |
| A. | Chemical fertilizers |
| B. | Landslides |
| C. | Floods |
| D. | All of the above |
| Answer» E. | |
| 55. |
The major factor(s) of soil formation is (are) |
| A. | the nature of the parent rock |
| B. | climatic factors |
| C. | time taken for the composition of soil formation |
| D. | All of the above |
| Answer» E. | |
| 56. |
The following is (are) not a factor(s) of soil formation |
| A. | Organic matter |
| B. | Time |
| C. | Soil texture |
| D. | All of the above |
| Answer» D. All of the above | |
| 57. |
The thin layer of grainy substance covering the surface of the earth is called |
| A. | soil |
| B. | sand |
| C. | mineral |
| D. | organic matter |
| Answer» B. sand | |
| 58. |
The total percent of land of world under forest is |
| A. | 26 |
| B. | 31 |
| C. | 36 |
| D. | 41 |
| Answer» C. 36 | |
| 59. |
Land covers only about ____ percent of the total area of the earth’s surface |
| A. | 20 |
| B. | 25 |
| C. | 30 |
| D. | 35 |
| Answer» D. 35 | |
| 60. |
The resources can be conserved by |
| A. | reducing consumption |
| B. | recycling |
| C. | reusing |
| D. | All of the above |
| Answer» E. | |
| 61. |
Balancing the need to use resources and also conserve them for the future is called |
| A. | sustainable development |
| B. | resource conservation |
| C. | resource development |
| D. | human resource development |
| Answer» B. resource conservation | |
| 62. |
The following is (are) the non-renewable resources |
| A. | Coal |
| B. | Petroleum |
| C. | Natural gas |
| D. | All of the above |
| Answer» E. | |
| 63. |
The resources which are found everywhere are known as |
| A. | Ubiquitous |
| B. | Non-renewable resources |
| C. | Human made resources |
| D. | None of the above |
| Answer» B. Non-renewable resources | |