The Earth: Question Preview (ID: 29361)

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Which horizon is also known as TOPSOIL?
a) Horizon O
b) Horizon A
c) Horizon B
d) Horizon C

What is humus?
a) light colored subsoil
b) weathered rock
c) decayed organic matter usually dark in color

What is one way a farmer can add nutrients to the soil?
a) by planting vegetative cover on a hill
b) by planting trees around a field
c) by creating terraces in a hill
d) by conserving how often he/she plows up remaining vegetation

Which of the following lists some of the properties of soil?
a) texture, deposition, compaction
b) deposition, compaction, cementation
c) texture, color, chemistry
d) color, pore size, humus

What is one important component of soil?
a) dirt
b) weathered rock
c) inorganic matter
d) water

Which of these is an impact made by HUMANS?
a) marble being dug from a quarry
b) marble forming from sedimentary rock
c) oceans drying and exposing limestone
d) limestone forming from the shells of ocean animals

What type of rock is formed inside the earth because of tremendous heat and pressure?
a) igneous
b) sedimentary
c) metamorphic
d) pumice

In what type of rock do crystals form while it is cooling?
a) igneous
b) sedimentary
c) metamorphic
d) fossils

In what type of rock might you see layers?
a) igneous
b) metamorphic
c) sedimentary
d) marble

How did the Incas in Peru create farm land out of the Andes Mountains?
a) by praying to the gods
b) by planting vegetative cover
c) by using conservation tillage
d) by building terraces into the mountains

Which type of plate boundary will result in a mid-atlantic ridge? (Hint: the sea floor is spreading apart)
a) divergent
b) convergent
c) transform
d) humus

The San Andreas fault that causes earthquakes in California is what type of plate boundary?
a) divergent
b) convergent
c) transform
d) humus

What will most likely happen if two pieces of continental crust meet and collide?
a) an ocean trench will form
b) a mountain will form
c) a volcano will form
d) an earthquake will form

What do we call the energy released in an earthquake wave?
a) a light wave
b) a sound wave
c) a seismic wave
d) an electromagnetic wave

Which layer of the earth is responsible for plate tectonic movement?
a) the mantle
b) the outer core
c) the inner core
d) lithosphere

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