Question

A. Choose the correct option.
1. The upper most part of the Earth's surface is called the
i. crust
ii. mantle
iii. outer core
iv. inner core
2. Nickel and iron are found in
i. crust
ii. mantle
iii. inner core
iv. outer core
3. The main constituents of the continental mass are
i. silica and magnesium
ii. silica and aluminum
iii. nickel and ferrous
iv. silica and nickel
4. Thickness of the continental areas in the crust is
i. 12 km
ii. 15 km
iii. 25 km
iv. 35 km
iv. 3000 km
iv. both i & ii
5. The thickness of the mantle is
i. 2500 km
ii. 2700 km
iii. 2900 km
6. Which one of the following rocks are also called volcanic rocks?
i. metamorphic
ii. sedimentary iii. igneous
7. The rocks which are formed by cooling of magma are
i. igneous
ii. sedimentary iii. metamorphic
8. Which type of rocks contain fossils and plant remains?
iii. sedimentary
i. extrusive igneous ii. intrusive igneous
iv. permeable
iv. metamorphic​

Answer 1

Answer:

1. a).. crust...
2. b).. Mantle
3. b) Silica and aluminum..
4. f).. both a and b..
5. c)... 2900km
6. c).. Igneous rock
7. c)..metamorphic
8. e)...... metamorphic..

Explanation:

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