Earth Science Long Quiz

Which layer of the atmosphere contains 80% of the atmosphere’s mass?

• Thermosphere

• Mesosphere

• Stratosphere

• Troposphere

What is the main function of the ionosphere?

• Protects the earth from harmful rays of the sun

• Temperature decreases with increasing height

• Helps in propagation of radio waves

• Contains 80% of the atmosphere’s mass

What is the process by which rocks change in kind?

• Evaporation

• Rock Cycle

• Condensation

• Deposition

What is the shape of the earth?

• Oblate spheroid

• Circular

• Elliptical

• Spherical

What is the movement of the earth around the sun called?

• Revolution

• Seasons

• Tilt of axis

• Rotation

What is the main component of stars?

• Hydrogen

• Oxygen

• Carbon

• Helium

What is the process by which condensed water vapor falls from the clouds to the ground?

• Evaporation

• Condensation

• Precipitation

• Deposition

What is the movement of water caused by the gravitational pull of the sun and moon on earth called?

• Hydrosphere

• Tsunamis

• Tides

• Waves and Currents

Which planet was removed from the list of planets and classified as a dwarf planet?

• Jupiter

• Mars

• Venus

• Pluto

What is the widely accepted theory on the origin of the solar system?

• Isostasy

• Pangaea

• Big Bang Model

• Nebular hypothesis