Non-native species do damage by (choose all that apply)

A. disrupting the local ecosystem

B. Outcompeting and replacing native species

C. reducing biodiversity

Why are radioactive materials a concern even though dumping them in the sea was banned by international law in 1975 and 1983 ?

Despite the $\mathbf{1 9 7 5}$ and $\mathbf{9 8 3}$ bans on dumping radioactive materials at sea, they remain a concern because (choose all that apply)

A. so much was dumped prior to the bans.

B. evidence suggests that radioactive waste barrels are leaking

C. nuclear powered vessels continue to dump nuclear waste

D. uranium meteors continue to raise radiation levels

What kinds of damage do non-native species cause?

Explain where oil pollution comes from and how it affects the environment.

Radioactive materials primarily get into the oceans

A. from nuclear accidents

B. by intentional dumping

C. from uranium meteors.

D. none of the above

Define pollution and list the different sources of pollution, with the percentage of each in the ocean.

How do modern ships carry non-native species to new environments?

How do radioactive materials get into the oceans?

The most common way that modern ships transplant non-native species to new environments is by

A. allowing ship mascots to escape

B. Loading and discharging ballast water

C. deliberately sabotaging the local environment.

D. none of the above

How do plastics enter the marine environment?

About how much per person does pollution cost the average US citizen?

Which gases are greenhouse gases?

The primary cause of coastal wetland destruction is the tendency for

A. people to overfish

B. people to relocate coastal species inland

C. people to live near the coast

D. the coast to degrade naturally