Arrange these levels of Organization in order from 1 to 4 starting with the simplest organism, community, ecosystem, and population

Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine

What is one real world example of a colligative property?

Which states of matter have particles that move independently of one another with very little attraction?