Q1. Fill in the blanks.
i. The insects, butterflies, honeybees and birds help flowering plants in_____________.
ii. A forest is a purifier of __________and______________.
iii. Herbs form the ____________layer in the forest.
iv. The decaying leaves and animal droppings in a forest enrich the_____.
i. Forests protect the soil from erosion. _________
ii. Plants and animals in a forest are not dependent on one another. ____
iii. Forests influence the climate and water cycle. ________
iv. Soil helps forests to grow and regenerate. _________
Q3. What happens if an animal dies in the forest?
Q4. Which of the following is not a forest product?
(i) Gum (ii) Plywood (iii) Sealing wax (iv) Kerosene
Q5. Micro-organisms act upon the dead plants to produce
(i) sand (ii) mushrooms (iii) humus (iv) wood
Q6. What is known as the crown of the tree?
Q7. What is canopy?
Q8. List five products we get from forests.
Q9. What are known as understoreys in forest?
Q10. What is the effect of deforestation on soil?
Q11. In which layer of the soil would you find humus? What is its importance to the soil?
Q12. Why does the forest floor seem to be dark-coloured?
Q13. Who would have planted trees in forest?
Q14. Why even after heavy rainfall water do not stagnate in the forest?
Q15. Why forests are called green lungs?
Q16. Why raindrops do not hit the forest floor directly?
Q17. Why are forests disappearing?