Mangrove Forests of Nigeria

Q. Why do the roots of the mangrove trees grow above the soil?

1. The roots grow above the soil to breathe air.
2. The roots do not have enough soil to grow below.
3. The roots are uplifted due to the constant movement of tides.
4. All of the above

Q.

Mangroves have ___ roots.

Q.

what are mangrove forests?

Q. Choose the right option based on the two statements given below.

Statement 1: Mangrove forests are found in the coastal areas of Nigeria.

Statement 2: Mangrove trees have roots growing above soil level.

1. Statement 1 and Statement 2 are incorrect.
2. Statement 2 is incorrect.
3. Statement 1 and Statement 2 are correct and related.
4. Statement 1 and Statement 2 are correct but unrelated.

Q. The Mangrove forests form a wide belt in the coastal region of Nigeria.

1. 16-96 km
2. 50-150 km
3. 150-200 km

Q. What is the width of the mangrove forests of Nigeria?

1. 100-196 km wide
2. 196-250 km wide
3. 16-96 km wide
4. 200-300 km wide

Q. How have the trees in the saltwater marshes adapted to the surroundings?

1. The trees grow their roots deep in the soil to provide stability.
2. The trees don't have any special adaptations.
3. The trees have special glands which can expel salt.
4. The roots of the trees in the mangrove forest are above ground level, sticking out of the marsh.

Q. Mangrove trees have special glands to expel excess salt absorbed by the roots.

1. True
2. False