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LAPISAN BUMI

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What are the three main layers of the Earth?

a)

Lithosphere, Atmosphere, Hydrosphere

b)

Core, Mantle, Lithosphere

c)

Crust, Mantle, Atmosphere

d)

Crust, Mantle, Core

2.

What is the outermost layer of the Earth called?

a)

Lithosphere

b)

Core

c)

Mantle

d)

Crust

3.

What is the layer beneath the Earth's crust?

a)

atmosphere

b)

mantle

c)

lithosphere

d)

core

4.

What is the innermost layer of the Earth?

a)

Crust

b)

Inner core

c)

Outer core

d)

Mantle

5.

What is the mantle primarily made of?

a)

Silicate minerals, primarily olivine and pyroxenes.

b)

Granite and basalt

c)

Water and ice

d)

Iron and nickel

6.

How thick is the Earth's crust on average?

a)

15 kilometers

b)

20 kilometers

c)

30 kilometers

d)

50 kilometers

7.

What is the core of the Earth mainly composed of?

a)

Iron and nickel

b)

Aluminum and magnesium

c)

Calcium and sulfur

d)

Silicon and oxygen

8.

What is the difference between the inner core and outer core?

a)

The inner core is gas; the outer core is solid.

b)

Both the inner core and outer core are solid.

c)

The inner core is liquid; the outer core is solid.

d)

The inner core is solid; the outer core is liquid.

9.

What layer do tectonic plates float on?

a)

asthenosphere

b)

lithosphere

c)

mantle

d)

core

10.

Why is the study of Earth's layers important?

a)

It helps in identifying different species of plants.

b)

The study is crucial for improving agricultural practices.

c)

Understanding Earth's layers is essential for space exploration.

d)

The study of Earth's layers is important for understanding geological processes and predicting natural disasters.