1. What is the term for the movement of water through plants from
roots to leaves?
A. Absorption
B. Transpiration
C. Photosynthesis
D. Evaporation
Answer: b) Transpiration
Rationale: Transpiration is the process by which water is absorbed by
plant roots, moved through the plant, and evaporates from the leaves
into the atmosphere.
2. What is the role of photosynthesis in plants?
A. To absorb carbon dioxide
B. To produce food for the plant
C. To release oxygen into the air
D. To absorb nutrients from the soil
Answer: b) To produce food for the plant
Rationale: Photosynthesis allows plants to convert light energy into
chemical energy, producing glucose, which is used as food.
3. What is the major factor influencing soil erosion?
,A. High soil organic matter content
B. Excessive rainfall and wind
C. Soil texture
D. Soil pH
Answer: b) Excessive rainfall and wind
Rationale: Heavy rainfall and wind are the leading causes of soil erosion
by displacing topsoil, especially in unprotected areas.
4. What is the main advantage of using genetically modified (GM)
crops in agriculture?
A. Reduced water consumption
B. Increased crop yield and pest resistance
C. Improved soil fertility
D. Decreased need for irrigation
Answer: b) Increased crop yield and pest resistance
Rationale: GM crops are designed to enhance yield and provide
resistance to pests, diseases, and environmental stressors.
5. What is the process of breaking down organic matter in soil called?
A. Decomposition
B. Germination
C. Fermentation
, D. Photosynthesis
Answer: a) Decomposition
Rationale: Decomposition is the process by which microorganisms
break down organic material, returning nutrients to the soil.
6. What does the term "green manure" refer to?
A. The use of animal manure in gardens
B. Cover crops used to improve soil health
C. Synthetic fertilizers
D. Green plant-based fertilizers
Answer: b) Cover crops used to improve soil health
Rationale: Green manure refers to crops grown specifically to improve
soil fertility, often by adding organic matter and nutrients when
incorporated into the soil.
7. What is the main purpose of crop rotation?
A. To increase soil erosion
B. To reduce soil nutrient depletion
C. To encourage plant diseases
D. To increase pest population
Answer: b) To reduce soil nutrient depletion
roots to leaves?
A. Absorption
B. Transpiration
C. Photosynthesis
D. Evaporation
Answer: b) Transpiration
Rationale: Transpiration is the process by which water is absorbed by
plant roots, moved through the plant, and evaporates from the leaves
into the atmosphere.
2. What is the role of photosynthesis in plants?
A. To absorb carbon dioxide
B. To produce food for the plant
C. To release oxygen into the air
D. To absorb nutrients from the soil
Answer: b) To produce food for the plant
Rationale: Photosynthesis allows plants to convert light energy into
chemical energy, producing glucose, which is used as food.
3. What is the major factor influencing soil erosion?
,A. High soil organic matter content
B. Excessive rainfall and wind
C. Soil texture
D. Soil pH
Answer: b) Excessive rainfall and wind
Rationale: Heavy rainfall and wind are the leading causes of soil erosion
by displacing topsoil, especially in unprotected areas.
4. What is the main advantage of using genetically modified (GM)
crops in agriculture?
A. Reduced water consumption
B. Increased crop yield and pest resistance
C. Improved soil fertility
D. Decreased need for irrigation
Answer: b) Increased crop yield and pest resistance
Rationale: GM crops are designed to enhance yield and provide
resistance to pests, diseases, and environmental stressors.
5. What is the process of breaking down organic matter in soil called?
A. Decomposition
B. Germination
C. Fermentation
, D. Photosynthesis
Answer: a) Decomposition
Rationale: Decomposition is the process by which microorganisms
break down organic material, returning nutrients to the soil.
6. What does the term "green manure" refer to?
A. The use of animal manure in gardens
B. Cover crops used to improve soil health
C. Synthetic fertilizers
D. Green plant-based fertilizers
Answer: b) Cover crops used to improve soil health
Rationale: Green manure refers to crops grown specifically to improve
soil fertility, often by adding organic matter and nutrients when
incorporated into the soil.
7. What is the main purpose of crop rotation?
A. To increase soil erosion
B. To reduce soil nutrient depletion
C. To encourage plant diseases
D. To increase pest population
Answer: b) To reduce soil nutrient depletion
