1. Fill in the blanks:

(i) Cereal grains are rich in _______.

(ii) Pea, soya bean are some examples of _______.

(iii) Vegetables are sources of vitamins and _______.

(iv) Sunflower oil is _______.

Answer

(i) Carbohydrates

(ii) Pulses

(iii) Fibres

(iv) Edible

2. Match the following.

1. Cattle fodder          a. Flax plant

2. Turmeric                 b. Medicine

3. Cinnamon               c. Hay

4. Linen                      d. Spice

Answer

1. c,   2. b,   3. d,   4. a

3. State whether true or false.

(i) Gum is obtained from acacia.

(ii) Wood from willow tree is used in making cricket bats.

(iii) Garlic are used in treating cold and cough.

(iv) Perfumes are extracted from seeds.

Answer

(i) True

(ii) True

(iii) False

(iv) False

4. How the plants are useful to human being?

Plants are very important in our everyday life. They provide us with food, oxygen, medicine, wood, fibre and many other useful products. Plants purify air by taking in carbon dioxide and giving out oxygen during photosynthesis. The roots of plant help to prevent soil erosion.

5. What are cereals?

Food grains such as wheat, rice, barley, millet, oat, corn and maize are obtained from plants. Food grains are also called cereals. Cereal grains are rich in carbohydrate.

6. Name the pulses which we can see around us.

Pulses such as beans, peas, soya beans,  bengal gram, toor dal and moong dal are also produced by plant.

7. What is the medicinal property of onion?

Onions contain a mild antibiotic that fights infections and soothes burns.

8. Name the fruits which we can eat from our nature.

Apples, bananas, peaches, cherries, grapes, mangoes, orange, plum, watermelon etc…

9. Name the vegetable which we use for cooking.

Cabbage, cauliflower, spinach, potato, broccoli, beetroot, onion, ladies finger, tomato, bitter guard, pumpkin etc...

10. What are the varieties of oils we get from seeds?

Seeds of trees and  plants give us edible oils such as groundnut oil, sunflower oil and palm oil. Medicinal oils such as Castor oil, eucalyptus oil and neem oil are also obtained from plants. Some oils such as cotton oil, olive oil and neem oil are used to prepare soap. Coconut oil is used as hair oil.

11. What are spices?

Spices add flavor to our food. They are also plant products.

Examples: ginger, clover, turmeric, cinnamon, coriander, chilli, pepper and saffron.

12. What are beverages?

Beverages such as coffee and tea are also obtained from plants. We get coffee from coffee beans. Tea is processed from tea leaves. Cocoa bean is used in preparing cocoa powder and chocolates.

13. What are the uses of aloe vera?

A sticky gel-like substance in the leaves of aloe vera plant is widely used in making skin lotions, skin creams and shampoos.

14. Explain the medicinal values of Cinchona and Turmeric?

Quinine is a medicine obtained from the bark of cinchona tree, which is used to cure malaria. Turmeric is an antiseptic and is used to heal wounds.

15. What is fodder?

Dried stems of plants, hay and grass are called cattle folder.

16. What are fibers? Write their uses.

We get fiber from plants. Cotton, jute hemp and flux are some plants that give us fibers. Cotton plants give us cotton. From jute plants we get jute fiber. Flux plant gives us linen fibers are used to make clothes, hand bags and ropes.

17. Name the tree which is used to make furniture.

Wood obtained from trunk of trees such as rose wood, ebony, teak, mango and mahogany is used to make furniture.

18. What is the use of rubber tree?

Rubber is obtained from rubber tree. It is used to make erasers, tyres and tubes.

19. What is manure?

Dry and decayed leaves of plants from humans (used as manure) in soil and improves the fertility of soil.

20. What is nut? Give examples.

Nuts are sources of proteins, vitamins and fats. Examples: cashew nut, ground nut, walnut, pistachio nut, almond.