Crop and Environment MCQs-13

1. In the absence of the natural greenhouse effect, the Earth’s global mean surface temperature would be approximately___________

2. Chilling injury, a physiological disorder caused by exposure to low but non-freezing temperatures, is most commonly associated with __________________

3. The visible symptom of chlorosis (yellowing of leaves) in plants is most commonly a sign of deficiency in which element?

4. The practice of growing two or more crops simultaneously on the same land in a mixed pattern is called ———–

5. Rice plants grow best in the temperature range of ————–

6. —————- plants complete their life cycle (seed to seed) in a single growing season

7. The temperature range in which crop growth is maximum is called ———-

8. —————— is the amount of water vapor present in the atmosphere relative to the maximum it can hold at a given temperature

9. The temperature at which the air becomes saturated with water vapor and condensation begins, is called the __________________

10. Which essential plant nutrient is primarily derived from the air rather than the soil?