North Carolina biologists discovered an increase in cancer in fish within a large lake. What could be a possible reason for the increase in cancer?

I think it is because the water is acidic, but I'm not completely sure ...

What fact or facts support a situation where trade is disadvantageous?

What is involuntary migration? A. choosing to move to find new opportunities B. being forced to move from one place to another C. migrating out of one's own free will D. spreading culture through technology

The areas of dense population in China are A. Eastern low land areas with a predominantly human sub tropical climate B Plateau regions with cool, dry climates C coastal regions with tropical wet climates D Mountain regions with semi arid climates

The number of people supported by a unit area of arable land is called what?

Which ocean is the largest? a. the Pacific Ocean b. the Indian Ocean c. the Arctic Ocean d. the Atlantic Ocean

There are 51 students going on a field trip. Each van holds 8 students. How many vans are needed?

What is the hawaiian hotspot?

which type of coal has the lowest rank based on its heating capacity? A bituminous B subbituminous C anthracite D lignite

To determine which countries are part of the African nations, you should reference a a. Physical map c. Data map b. Table d. Political map

What percentage of the world's earthquakes and active volcanoes occur on the ring of fire?