Question

Read the following environmental conditions of tropical rain forests.

(i) A hot and humid climate

(ii) Unequal lengths of day and night

(iii) Abundant rainfall

(iv) Abundant light and moisture

Identify the conditions from the above list that are responsible for the presence of a large number of plants and animals in tropical rain forests.

• A. (i) and (ii)
• B. (i) and (iii)
• C. (i), (iii) and (iv)
• D. (ii) and (iv)

Answer 1

The correct option is C

(i), (iii) and (iv)

The correct option is C

Explanation of the correct option:

1. The characteristics of a hot and humid climate are abundant rainfall, and light and moisture.
2. Hot and humid climates, abundant rainfall, and moisture are the best conditions for supporting the growth of crops present in tropical rain forests.
3. As these forests are found in tropical regions they are evergreen in nature and are of vivid types.
4. They are also known as close canopy forests.

Explanation of the incorrect option:

Option A:

1. Option A includes the characteristics of unequal lengths of day and night and a hot and humid climate.
2. Unequal lengths of day and night are not responsible for the diversity of tropical forests the climate is responsible.
3. This is because days and nights are nearly equal in this area as it is near the equator.
4. Also, light and moisture are important for growth and are present in abundance.
5. The characteristic present in this option is not right therefore this is an incorrect option.

Option B

1. Option B includes the characteristics of a hit and humid climate and abundant rainfall.
2. With a hot humid climate and abundant rainfall moisture and light are also required.
3. Both the characters are correct but it does not include light and moisture.
4. light and moisture are key ingredients for growth in plants of tropical regions.
5. Therefore this is an incorrect option.

Option D:

1. Option D includes unequal lengths of day and night and light and moisture.
2. Though tropical forests require light and moisture for their growth the length of day and night is equal in that region.
3. Unequal lengths of day and night are not required characteristics.
4. Therefore this is an incorrect option.

Final answer:

The following are the environmental conditions of the tropical rain forest :

A hot and humid climate

Abundant rainfall

Abundant light and moisture Identify the conditions from the above list that are responsible for the presence of a large number of plants and animals in tropical rain forests.