Which of the following is the largest irrigation canal in the world?
| A. | Panama Canal |
| B. | Sirhind Canal |
| C. | Suez Canal |
| D. | Indira Gandhi Canal |
|
Option: D Explanation : Click on Discuss to view users comments. |
Which of the following soils is most suitable for cultivation of cereals?
| A. | Alluvial soils |
| B. | Red soils |
| C. | Laterite soils |
| D. | None of these |
|
Option: A Explanation : Click on Discuss to view users comments. |
Which of the following is not a plantation crop?
| A. | Coffee |
| B. | Rubber |
| C. | Sugarcane |
| D. | Tea |
|
Option: C Explanation : Click on Discuss to view users comments. |
Which of the following provides a correct description of mixed farming?
| A. | Growing different crops alternately |
| B. | Cultivating different varieties of same crops |
| C. | Cultivating different crops in the same farm at same time |
| D. | Raising livestock together with cultivation of farms |
|
Option: D Explanation : Click on Discuss to view users comments. |
The main cause of increase in salinity of arid land due to irrigation is
| A. | contribution of solutes by the plants grown with irrigation |
| B. | solutes are brought up from lower soil horizons, with the evaporation of water |
| C. | contribution of solutes through irrigation |
| D. | dissolution of solutes due to irrigation |
|
Option: B Explanation : Click on Discuss to view users comments. |
