Which of these is the form in which igneous rock begins?
A. sediment
B. magma
C. carbon
D. soil

Which of the following are false concerning microbes? a. microbes generate oxygen through photosynthesis.b. the primary role of microbes on the planet involves causing disease in animals and humans.c. microbes produce vitamins in the intestines.d. microbes play a role in breaking down waste and decomposing dead organisms.

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?

What changes the stability of the element