The luxuriant growth of natural vegeta- tion in tropical rainforest is due to 1. fertile soil. 2. hot and wet climate throughout the year. 3. intense sunlight for photosynthesis. 4. seasonal change to facilitate nutrient absorption. Select the correct ans

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Q: 50 (NDA-I/2015)
The luxuriant growth of natural vegeta- tion in tropical rainforest is due to
1. fertile soil.
2. hot and wet climate throughout the year.
3. intense sunlight for photosynthesis.
4. seasonal change to facilitate nutrient absorption.
Select the correct answer using the code given below :

question_subject: 

Science

question_exam: 

NDA-I

stats: 

0,38,31,5,38,8,18

keywords: 

{'tropical rainforest': [1, 0, 0, 1], 'luxuriant growth': [0, 0, 0, 1], 'photosynthesis': [20, 0, 4, 11], 'nutrient absorption': [0, 0, 0, 1], 'fertile soil': [1, 0, 1, 3], 'seasonal change': [0, 0, 0, 1], 'intense sunlight': [0, 0, 0, 1]}

The correct answer to the question is option 2, which states that the luxuriant growth of natural vegetation in tropical rainforests is due to hot and wet climate throughout the year and intense sunlight for photosynthesis.

Explanation:

1. Fertile soil: Although fertile soil is important for the growth of vegetation, it does not specifically contribute to the luxuriant growth in tropical rainforests. Hence, option 1 is incorrect.

2. Hot and wet climate throughout the year: This is a key factor in the luxuriant growth of vegetation in tropical rainforests. The constant high temperatures and abundant rainfall provide favorable conditions for plant growth. Moisture and warmth in the environment support the growth and reproduction of a wide variety of plant species.

3. Intense sunlight for photosynthesis: Sunlight plays a crucial role in photosynthesis, the process through which plants convert sunlight, water, and carbon dioxide into energy. In rainforests, the dense canopy of trees allows limited sunlight to reach the forest floor. However, the intense sunlight that does penetrate the canopy is essential for the growth and survival of plants. This option is correct.

4. Seasonal change to facilitate nutrient absorption: There is no mention of seasonal change in the luxuriant growth of vegetation