What is thr driving force of convection in the atmosphere and ocean?

What metric units would you use to measure the thickness of a key

In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding.i

What causes the appearance of lines in a emission spectrum