How do the mass and the density of the mantle compare with the mass and density of Earth’s core?(1 point)
Responses
The mantle’s mass and its density are greater than that of the core.
The mantle’s mass and its density are greater than that of the core.
The mantle’s mass is greater than the core’s mass, but with less density.
The mantle’s mass is greater than the core’s mass, but with less density.
The mantle’s mass is less than the core’s mass, but with greater density.
The mantle’s mass is less than the core’s mass, but with greater density.
The mantle’s mass and its density are less than that of the core.
The mantle's mass is greater than the core's mass, but with less density.
Which can be excluded from the list of events caused by the flow of thermal energy inside the Earth?(1 point)
Responses
earthquakes
earthquakes
valley formations
valley formations
thunderstorms
thunderstorms
volcanic eruption
thunderstorms
Select the best answer. Which statement is true about all convection currents?(1 point)
Responses
It happen in all layers of the Earth.
It happen in all layers of the Earth.
It causes earthquakes.
It causes earthquakes.
It results to formation of valleys and hills.
It results to formation of valleys and hills.
It is made possible by heat and pressure.
It is made possible by heat and pressure.
What is physical weathering? (1 point)
Responses
the movement of rock from one place to another
the movement of rock from one place to another
the transformation of rocks into some other type of materials
the transformation of rocks into some other type of materials
the building up of rock that has been brought from other places
the building up of rock that has been brought from other places
the breaking of rock into smaller pieces from nonchemical processes
the breaking of rock into smaller pieces from nonchemical processes
How can plants cause weathering? (1 point)
Responses
Plants attract animals, and animals can burrow into rocks.
Plants attract animals, and animals can burrow into rocks.
Plants need water, and water can weather rocks.
Plants need water, and water can weather rocks.
Sprouting seeds and growing roots can cause rocks to break.
Sprouting seeds and growing roots can cause rocks to break.
Chemical reactions in plants change rocks and break them into smaller piece
Sprouting seeds and growing roots can cause rocks to break.
Which action can help slow down the process of chemical weathering?(1 point)
Responses
removing iron oxide to avoid breaking down rocks
removing iron oxide to avoid breaking down rocks
removing clay to avoid weakening rocks
removing clay to avoid weakening rocks
burning less fossil fuel
burning less fossil fuel
using less water in industrial areas
burning less fossil fuel
Which is least affected by chemical weathering?(1 point)
Responses
a statue made of marble
a statue made of marble
a chair made of plastic
a chair made of plastic
a bridge made of iron rods
a bridge made of iron rods
a pile of tiles made of feldspar
a chair made of plastic
How do igneous rocks form?(1 point)
Responses
from the modification of existing rock
from the modification of existing rock
from the cooling of magma
from the cooling of magma
from the evaporation of water
from the evaporation of water
from the cementing of sediments
from the cooling of magma
What is formed at a divergent plate boundary?(1 point)
Responses
oceanic crust
oceanic crust
metamorphic rock
metamorphic rock
mountains
mountains
sedimentary rock