The process in which nitrogen is converted into a usable form for life is called
a.
nitrogen fixation
b.
photosynthesis
c.
greenhouse effect
d.
photolysis

Mrs. smith ordered a root beer float (vanilla ice cream + root beer). mrs. smith noticed that the three states of matter (solid, liquid, and gas) all existed simultaneously in her root beer float. a. identify each phase of matter in the root beer float. b. describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? ) c. identify one phase change you would see in a root beer float and described what causes this change.

Based on its chemical properties, identify the position of each chemical family on the periodic table.

What is the lowest number energy level where a d sublevel is found