Earth Science Review

What is the name of our galaxy?

• Andromeda

• Milky Way

• Whirlpool

•    Sombrero

What force keeps the planets in orbit around the Sun?

• Magnetic force
  
  

• Gravitational force

• Electromagnetic force

• Nuclear force

How would the absence of an atmosphere affect life on Earth?

• Life would thrive due to less air resistance
  
  

• Life would struggle due to lack of oxygen and protection from solar radiation
  
  

• Life would become more diverse

• 1.     Life would be unaffected

What is the most widely accepted theory for the beginning of the universe?

• The Steady State Theory

• The Oscillating Universe Theory

• The Big Bang Theory

• The Eternal Inflation Theory

What is unique about Earth’s surface that supports life compared to other planets?

• It is entirely covered in land

• It has a solid iron core

• It is 70% covered by liquid water

• It is closest to the Sun

1.     What type of weathering is exhibited when the rocks are fractured, cracked, and broken down into small pieces?

• chemical weathering

• oxidation        

• physical weathering

• pressure change

  Which of the following is an example of oxidation?

• rusting of iron

• halite dissolves in water

• feldspar decomposes to form clay    

• stalactites and stalagmites formation

What process of chemical weathering is involved when water reacts with one mineral to form a new mineral like feldspar into clay?

• dissolution

• hydrolysis

• oxidation

• pressure

What type of mechanical weathering occurs when freezing of water and repeated thawing in cracks of rocks?

• abrasion

• frost wedging

• oxidation

• solution

Which of the following is described as the process of heat exchange between the Sun and the Earth that controls the temperatures of the latter?

• conduction

• convection

• insolation

• radiation