Scientists use radiometric dating to determine the exact age of rocks. What might scientists hypothesize about the natural structure shown in the image?
(1 point)
Responses
The lightest layers on the structure will be the oldest, while the darkest layers will be the youngest.
The lightest layers on the structure will be the oldest, while the darkest layers will be the youngest.
The lowest layer on the structure will be the oldest, while the highest layer will be the youngest.
The lowest layer on the structure will be the oldest, while the highest layer will be the youngest.
The darkest layers on the structure will be the oldest, while the lightest layers will be the youngest.
The darkest layers on the structure will be the oldest, while the lightest layers will be the youngest.
The highest layer on the structure will be the oldest, while the lowest layer will be the youngest.
The lowest layer on the structure will be the oldest, while the highest layer will be the youngest.
Why do convergent boundaries cause the formation of volcanoes? (1 point)
Responses
When two plates move away from each other, they create a crack in the crust, or a fault. This fault can go all the way to the mantle, causing magma to shoot out onto the crust.
When two plates move away from each other, they create a crack in the crust, or a fault. This fault can go all the way to the mantle, causing magma to shoot out onto the crust.
When two plates collide, part of one plate is broken. This creates an area where the mantle is exposed to the air and magma shoots out onto the crust.
When two plates collide, part of one plate is broken. This creates an area where the mantle is exposed to the air and magma shoots out onto the crust.
When two plates move away from each other, the crust gets thinner. This allows magma to shoot out onto the surface of the crust and harden.
When two plates move away from each other, the crust gets thinner. This allows magma to shoot out onto the surface of the crust and harden.
When two plates collide, one goes under the other. This creates an area of high pressure, which causes mantle rock to melt into magma and shoot out onto the crust.
When two plates collide, one goes under the other. This creates an area of high pressure, which causes mantle rock to melt into magma and shoot out onto the crust.
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Acidic water is known to react with the substances in limestone, breaking it down. What is this process called?(1 point)
Responses
volcanism
volcanism
erosion
erosion
weathering
weathering
tectonic uplift
weathering
Why do most people in Southeast Asia live near river deltas and on volcanic islands?
A.
because of the abundant rainfall
B.
because of the fertile soil
C.
because of the isolation from invaders
D.
because of the mild climate conditions