STD - 3, CHAPTER 3 - LEAF, EXERCISE QUESTIONS AND ANSWERS

A.     FILL IN THE BLANKS.

 

1.      _________ is the common, green part of the plant.

Ans: Leaf

2.      Leaves of different plants differ in their shape, size and ________.

Ans: Texture

3.      Neem and __________ leaves are often used for medicinal purposes.

Ans: Basil (Tulsi)

4.      The leaves of spinach and methi are used as _________.

Ans: Vegetables

B.      WRITE TRUE OR FALSE FOR THE FOLLOWING STATEMENTS:

 

1.      Neem leaf is often used to protect clothes from insects.                     True

2.      Leaves of plant help them to make their own food.                           True

3.      Curry leaves are used to garnish food.                                                True

4.      New leaves take place of old leaves.                                                     True

 

C.      TICK THE CORRECT OPTION.

 

1.      The leaf of this plant is used as a plate.

(a)   Banana         (b) Mango           (c) Basil         (d) Spinach

      Ans: Banana

2.      These should be used to make compost.

(a)   Fallen Leaves           (b) Burnt leaves         (c) Flowers          (d) Roots

      Ans: Fallen leaves

3.      This leaf is often used to add aroma to the food--

(a)   Peepal       (b)  Coriander       (c) Mango       (d) Neem

       Ans: Coriander

D.     ANSWER THE FOLLOWING QUESTIONS IN BRIEF.

 

1.      What does a leaf do for the plant?

Ans: Leaf plays a key role in making food for the plant.

2.      To what uses were some leaves put by saints in olden days?

Ans: Saints in olden days used some leaves to write.

3.      State two uses of leaves in our food.

Ans: i) Leaves of some plants are used to make food look nice and attractive.

ii) Leaves also add aroma to the leaves.

4.      Name any two articles where one can find leaf designs.

Ans: We find leaf designs in curtains, saree borders, temple carvings, paintings etc.

5.      How is compost useful for plants and crops?

Ans: Compost provides nutrients to the plants and crops. Thus it helps the plants and crops to grow better.

E.      ANSWER THE FOLLOWING QUESTIONS.

 

1.      State any three uses of leaves.

Ans: i) Leaves like Neem and Tulsi can be used for medicinal purposes.

ii) The leaves of spinach, mustard, fenugreek (methi) and cabbage are used as vegetables.

iii) Compost can be made using fallen leaves.

2.      Why do plants shed their leaves?

Ans: i) When the leaves become old, the plants shed them off.

ii) When the leaves are not able to perform their function well, they are shed off.

iii) When more harmful wastes get collected in the leaves, they are shed off.

3.      How can compost be made?

Ans: i) Collect the fallen leaves and kitchen waste.

ii) Dump them in a pit and cover it with moist soil.

      iii) After two or three months, it becomes compost.