Which of these are a compound?

A. Oxygen C. an element

B. water D. air

Can you water a plant with sea water

What diseases is caused by a cold or flu?

Bottleneck events are always caused by the death of most of a species' population.

What is the term for the particles of light that provide the energy needed for photosynthesis?

What specimens can you see under a light microscope?

When you look out the window, you can see constantly moving air. air is cycled in order to reach equilibrium. B) since these change the density of air and we know the air flows from the region of high density to the region of low density.

What effects do deforestation have on the animals?

Which best defines a diploid cell during meiosis? a cell that has double the number of chromosomes as the parent cell a cell that has half the number of chromosomes as the parent cell a cell that has double the number of chromosomes as the daughter

What is the best definitionof magnetosphere? a. a magnetosphere is a magnetic field around earth. b. a magnetosphere is the groups of atoms that are lined up inside a magnet. c.

True or false: tertiary sources can draw from, or summarize, a secondary source.