Exercise

Fill in the blanks:

1. Seasons occur due to the Earth's _______ to the plane of its orbit around the sun.

Ans: tilt

2. The angle of inclination of the Earth is ________ ^o.

Ans: 23.5

3. ______ are certain special characteristics that enable animals to live in a particular climate successfully.

Ans: Adaptations

4. Animals need modifications to conserve water in _____ and _____ climates.

Ans: dry, hot

5. Many animals in hot tropical climates have very _____ (large/small) ears as a distinct feature.

Ans: large

6. Leaf and stick insects are found in ______  (desert-like/hot tropical and temperate) climates.

Ans: hot tropical and temperate

7. In very cold climates, animals adapt in different ways to conserve ______.

Ans: body heat

Tick the correct answer:

1. Rain gauge is used to measure

(a) humidity

(b) rainfall

(c) temperature

(d) all of these

Ans: (b)

2. The climate of a place depends on

(a) latitude

(b) altitude         

(c) distance from the sea

(d) all of these

Ans: (d)

3. Which features adapt polar bears to live in extremely cold climate?

(a) A white fur, fat below skin, keen sense of smell.

(b) Thin skin, large eyes, a white fur.

(c) A long tail, strong claws, white large paws.

(d) White body, paws for swimming, gills for respiration.

Ans: (a)

4. Which option best describes a tropical region?

(a) hot and humid

(b) moderate temperature, heavy rainfall

(c) cold and humid

(d) hot and dry

Ans: (a)