Importance of planting and propagating trees

1. A substance in the air that is given- off by trees and is beneficial to human beings.

• a. carbon dioxide

• b. carbon monoxide

• c. erosion

• d. oxygen

2. It is the process of reproducing, multiplying and creating a new plant or seedling?

• a. Food preservation

• b. Photosynthesis

• c. Plant propagation

• d. Irrigation

3. This is one of the products of trees made from fiber and harvested from wood pulp.

• a. paper

• b. rubber

• c. turpentine

• d. Wood

4. The following are some importance of marketing seedlings. Which among the choices are correct?

I. to ensure the physical condition of seedlings

II. to preserve the quality of seedlings

III. to decrease the number of plant species

IV. a way of increasing the production of trees and fruit-bearing trees

• a. I, III, IV

• b. II, III, IV

• c. I, II, IV

• d. I, II, III

5. Processed wood from planted trees that is used to construct houses for

man and animals.

• a. lumber

• b. paper

• c. pulp

• d. Rubber

6. __________ are erect plants with single woody stem and it plays a very

important role in our ecological balance.

• a. flower

• b. shrub

• c. tree

• c. tree

7. The following are benefits in planting trees and fruit-bearing trees except one.

• a. They serve as valuable wildlife habitat.

• b. Trees cause erosion.

• c. They prevent lake and river sedimentation.

• d. They provide shade and fresh air around the house and along the streets and surroundings.

8. Trees take in _____________from factories and motorized vehicle emissions.

• a. carbon dioxide

• b. oxygen

• b. oxygen

• d. sulfur dioxide

9. The root system of the trees holds water in the soil that prevents ____________.

• a. carbon dioxide

• b. noise pollution

• c. soil erosion

• d. strong winds

10. Trees are valuable to people and community. Which of the following is not a product from trees?

• a. food like fruits, vegetables, and nuts

• b. fiber to produce pulp and paper

• c. wood used as fuel for cooking and heating

• d. chemical products such as pesticide and insecticide