Which of the following is a negative effect of algal blooms on the environment?
a. transport of carbon to the bottom of the ocean
b. production of oxygen
c. consumption of waterâ€™s oxygen
d. large source of energy
Which of the following does not lead to an increase in phytoplankton reproduction?
a. increased nutrient availability
b. inreased sunlight
c. increased oxygen levels
d. increased levels of carbon dioxide
How does climate change lead to an increase in algal blooms? a. Decreased temperatures lead to an increase in phytoplankton growth. b. Increased levels of carbon dioxide, a greenhouse gas, leads to increased phytoplankton growth. c. Increased pollution leads to lower levels of nutrients in aquatic ecosystems and therefore an increase in phytoplankton growth. d. Decreased water levels caused by climate change lead to an increase in phytoplankton growth.
Habitat change occurs more frequently through natural causes than human activity. TRUE or FALSE
Global warming is a theory accepted by a majority of scientists. TRUE or FALSE
Rising sea levels are a possible global consequence to a change in local environments. TRUE or FASLE
Africa was covered by glaciers during the pleistocene ice age. TRUE or FALSE

Algal bloom are responsible for creating the dead zones in water with little or no oxygen, where aquatic life cannot survive. These are also termed as hypoxia, areas that are affected by algal blooms consuming oxygen as they die and decompose. This may cause in the massive deaths of aquatic life.

Excess in algal population causes plant and matter to eventually decompose, producing large amounts of carbon dioxide. This lowers the pH of seawater, a process known as ocean acidification.

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