How can we see brown objects when brown is not a color of the spectrum?

Coquina, a type of limestone, forms from shell fragments that settle on the ocean floor. what type of rock is coquina?

This is one form of rna that transports a specific amino acid to a ribosome during protein synthesis.

What is one way intensive agriculture can contribute to climate change? a. tree loss to agriculture increases earth's albedo b. livestock manure absorbs greenhouse gases c. large herds of livestock release greenhouse gases d. fewer trees are available to replenish petroleum stores appex