What types of issues can be addressed using controls and data? What types of issues can’t and how do you address them?

it’s lava came from an explosive eruption

a physical change is being made.

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.

answer///malignant melanoma;