5. Some areas of the nation have limestone in the soil and lake bottoms. Explain how the presence of this

mineral acts as a natural buffer against acid rain

What do feedback loops do?

Which statement explains how convection currents affect the movement of plates? A-gravity pulls one edge of a plate down into the market which causes the rest of the plate to move as well B-heat from earths interior causes lithospheric plates to

Which might be a cause for the increase in songbirds at the feeders?

What change occurs during oxidation? a. loss of electrons b. gain of hydrogen c. loss of oxygen d. gain of electrons

Some bacteria live in the roots of plants like soybeans and peas. What is the role of these bacteria in the nitrogen cycle?

Scientists talk about the 6th Mass extinction happening right now. What is it and how is it different from the last 5?

Humans have 23 pairs of chromosomes. by contrast, chimpanzees have 24 pairs of chromosomes and lack any pair resembling the long human chromosome 2 pair;

Could a single cell extracted from a multicellular organism survive on its own, similar to the way the lone cell of a unicellular organism does? Why or why not?

Who is also known as father of genetics?

What do ion channels aid the movement of?