What is a subduction zone and a transform boundary?

After getting the slide and microscope ready, stella is eager to see the microscopic pond water specimen! she crouches around her microscope and aligns her eye with the microscope’s eyepiece. but she's only able to see a bright white light. at this point, no specimens or cells are visible on stella's pond water slide. after taking a moment to collect her thoughts, stella realizes she can't see any lifeforms because .

In the practice of science, this type of reasoning is used to develop explanations.

20 the compound al(nh3)2 has atoms of nitrogen.