Which statement describes how upwelling occurs? OA. Denser water rises to replace surface water pushed by wind.
O B. Saltier water rises as denser freshwater sinks.
OC. Denser water rises as less dense water sinks.
OD. Saltier water sinks as water above it freezes and forms sea ice.

What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.

What is the difference between a scientific hypotheses and a scientific theory?

Consider the venn diagram of plant reproduction. where in this image, areas a - d, would you insert the picture of the orange lily?