If 71% of the earth's surface is covered with water, why is water conservation important?

The pheromones by which ants transmit information are

How are fossils evidence of biological evolution

Which gas is not produced by volcanic eruptions?

An element is defined as a pure substace because it is made of only one kind of?

What are the similarities and differences between Earth and enviorment

Of the three terms biome, community, and ecosystem, which term contains the other two?

What were the synapsids? When were they most widespread?

When the northern hemisphere is having summer solstice what is happening in the southern hemisphere a. Fall equinox b. Spring equinox c. Winter solsist D. Summer solstice

Compare the functions of DNA and proteins in cell

Which of the following types of soil has the highest water retaining capacity (A) Clay (B) Laterite (c) Loam (D) Gravel (E) sand.