Question

B. Tick (v) the correct answer:
1. Earth's surface has a diameter of
(a) 3,675km
(b) 12.756km
(c) 6.378km ( )
2. Who proposed the continental drift theory?
(a) Alfred Wegener (
(b) Peter wison
(c) Albert James
3. The boiling point of water is:
(a) 100°F
) (b) 100°C
) (c) 102°C
4. The layer which reflects radio waves back to the Earth is:
(a) Ionosphere ) (b) Mesosphere
( ) (c) Exosphere
C. Fill in the blanks:
(Weather, Inosphere, Ozone, Upper part)
1. The______
part of the earth's surface is called crust.
2. The______
is the lower part of the thermosphere.
3. The________
layer saves us from harmful UV rays.
is the day to day condition of the atmosphere at any place.
4.______________ is the day to day condition of the atmosphere at any place
​

Answer 1

Answer:

Ans1: b) 12,756km

Ans2: a) Alfred Wegener

Ans3: b) 100°C

Ans4: a) Inosphere

Ans1: Upper part

Ans2: Inosphere

Ans3: Ozone

Ans4: Weather

Answer 2

Answer:

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