If toxic chemicals are spilled, they must be cleaned up immediately. which statement best explains why toxic chemical spills are so dangerous?
a. toxic chemicals are highly contagious.
b. toxic chemicals are highly corrosive.
c. toxic chemicals can cause genetic changes.
d. toxic chemicals can cause allergic reactions.

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun

What organ is the first to receive nutrients that have been absorbed from the digestive tract?