What are the to most abundant greenhouse gases in earth's atmosphere

How many molecules are present in 3 mols of silicon dioxide (sio2)?

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?

Why can blue light and yellow light combine to produce white light? question 17 options: they are both primary colors of light. they absorb each other's wavelengths. because blue, yellow, and white are primary colors. they are complementary colors of light.