Why is sunlight necessary for vegetation growth?
Answer and explanation
Correct answer: Because plants perform photosynthesis
Sunlight is necessary for green plants because it supplies the energy required for photosynthesis. In this process, plants use light energy to combine water and carbon dioxide and make food, while releasing oxygen. The food produced supports growth, repair, flowering, and the development of plant tissues. Therefore, light availability is a major factor affecting vegetation.
Option B is correct because photosynthesis directly depends on light. Soil, water, temperature, and the length of the growing season also influence vegetation, but sunlight provides the energy that makes food production possible. The other choices describe effects that are not the basic reason plants need sunlight: it does not always destroy soil, stop rainfall, or dry every river. Thus, the sunlight-photosynthesis-growth connection gives the answer.
Frequently asked questions
What is the correct answer to this question?
Because plants perform photosynthesis
Why is this the correct answer?
Sunlight is necessary for green plants because it supplies the energy required for photosynthesis. In this process, plants use light energy to combine water and carbon dioxide and make food, while releasing oxygen. The food produced supports growth, repair, flowering, and the development of plant tissues. Therefore, light availability is a major factor affecting vegetation.
Option B is correct because photosynthesis directly depends on light. Soil, water, temperature, and the length of the growing season also influence vegetation, but sunlight provides the energy that makes food production possible. The other choices describe effects that are not the basic reason plants need sunlight: it does not always destroy soil, stop rainfall, or dry every river. Thus, the sunlight-photosynthesis-growth connection gives the answer.
Which subject and chapter does this question cover?
This is a Class 9 Geography question. Chapter: Natural Vegetation and Wildlife. Topic: Factors Affecting Vegetation.
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