A) What causes coral bleaching? (1 point)

Question

Water acidity and high water temperatures make coral polyps more prone to infection, causing
them to turn white in color.
Water acidity causes coral polyps to lose their photosynthetic abilities, causing them to turn white
in color.
High water temperatures and water acidity cause coral polyps to expel algae, causing them to
turn white in color.
High water temperatures boil coral polyps, causing them to turn white in color.

Answer 1

C) High water temperatures and water acidity cause coral polyps to expel algae, causing them to turn white in color.

Answer 2

A) What causes ocean acidification? (1 point)
Acidic carbon dioxide dissolves in water, lowering the water’s pH.
Acidic carbon dioxide dissolves in water, raising the water’s pH.
Acidic oxygen dissolves in water, lowering the water’s pH.
Acidic oxygen dissolves in water, raising the water’s pH.

Answer 3

A) Acidic carbon dioxide dissolves in water, lowering the water’s pH.

Answer 4

A) There is a history of global temperatures changing, but why is this change different?
(1 point)
There are more species on the planet this time.
This shift in temperature is happening more quickly.
It is not different; this is a regular shift in temperature.
The Earth is getting cooler everywhere instead of warmer.

Answer 5

B) This shift in temperature is happening more quickly.

Answer 6

A) Which is the least likely reason that a seal needs ice cover? (1 point)
to reproduce
to get in and out of water
to protect itself from the sun
to consume prey

Answer 7

C) to protect itself from the sun

Answer 8

A) Coral bleaching affects (1 point)
the color of the water.
the biodiversity of the water.
the temperature of the water.
the acidity of the water.

Answer 9

B) the biodiversity of the water.