chapter 2

What causes the movement of tectonic plates on Earth's surface?

• Gravitational pull of the moon

• Impact of meteorites

• Heat from Earth's core

• Wind and water erosion

What allows life to thrive on Earth?

• The Earth's position in the solar system

• The existence of the moon

• The Earth's axial tilt

• The presence of other celestial bodies

What is the total number of planets revolving around the sun?

• 7

• 8

• 9

• 10

Which planet is nearest to the sun?

• Earth

• Venus

• Mercury

• Mars

How are the outer planets different from the inner planets in terms of surface?

• Outer planets are rocky and solid

• Outer planets are covered in gas

• Outer planets are completely made of water

• Outer planets are covered in ice

what is the surface of the outer planets like

• The surface of the outer planets is mostly made up of gases
• The surface of the outer planets is solid and rocky
• The surface of the outer planets is covered in water
• The surface of the outer planets is made up of molten lava

how much percent of the earth is water

• 70%

• 50%
• 80%
• 60%

what is the name of all the water on earth together

• Hydrosphere
• Biosphere
• Lithosphere
• Atmosphere

what makes up the earth's atmosphere

• Nitrogen, Oxygen, Argon and other gases
• Hydrogen, Helium, Lithium
• Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, Sulfur
• Gold, Silver, Copper, Zinc

what makes up the biosphere

• the earths atmosphere and land

• Only animals and plants
• Only water bodies
• Only land masses