Weathering Quick Check

1 of 51 of 5 Items
Question
Which is an example of chemical weathering?(1 point)
Responses

a crack in rock growing larger as water freezes in it
a crack in rock growing larger as water freezes in it

decomposition of rock when exposed to acidic plants
decomposition of rock when exposed to acidic plants

rock breaking apart during a rock slide
rock breaking apart during a rock slide

burrowing animals digging a home in rock
burrowing animals digging a home in rock

The correct answer is: decomposition of rock when exposed to acidic plants

Weathering Quick Check

2 of 52 of 5 Items
Question
Which is an example of physical weathering?(1 point)
Responses

bits of iron in rock rusting when exposed to oxygen and water
bits of iron in rock rusting when exposed to oxygen and water

acid rain breaking down compounds in rock statues
acid rain breaking down compounds in rock statues

rock breaking apart when it falls from a cliff
rock breaking apart when it falls from a cliff

oxygen interacting with minerals in rock

The correct answer is: rock breaking apart when it falls from a cliff

Weathering Quick Check

4 of 54 of 5 Items
Question
Which of the following indicates that different rocks in the same area might weather differently? Select the two correct answers. (1 point)
Responses

cliffs with ridges
cliffs with ridges

a smooth plain
a smooth plain

rock pillars in the middle of grassy plains
rock pillars in the middle of grassy plains

rock deep in a cavern

The correct answers are:

- Cliffs with ridges
- Rock pillars in the middle of grassy plains

Weathering Quick Check

5 of 55 of 5 Items
Question
How does time affect the physical weathering of a rock?(1 point)
Responses

Time does not affect physical weathering, only chemical weathering.
Time does not affect physical weathering, only chemical weathering.

Rock weathers the most when first exposed, then more slowly.
Rock weathers the most when first exposed, then more slowly.

Over time, the rock will become flat, slowing the rate of physical weathering.
Over time, the rock will become flat, slowing the rate of physical weathering.

The longer the rock has been exposed, the more it has weathered.
The longer the rock has been exposed, the more it has weathered.

The correct answer is: The longer the rock has been exposed, the more it has weathered.