Greenhouse gases make up what percentage of Earth's atmosphere? A. less than 1% B. between 1% and 5% C. between 5% and 20% D. over 20%

When you breathe in and out you're using your lungs

Protein in foods are broken down into amino acids through what process? Explain your answer. a. adsorption b. elimination c. chemical digestion d. mechanical digestion

Describe how you could use IR spectroscopy to distinguish between ethyl acetate and butyric acid. The IR spectrum of butyric acid should have a broad signal between 1650 cm-1 and 1850 cm-1. An IR spectrum of ethyl acetate will not have this signal.

Iodine-131 is used to locate brain tumors. determine volume of red blood cells. determine total body water. detect thyroid malfunction.

When a single species evolves into two species, the new species must be reproductively isolated. evolve different diets. be exposed to the same selective pressures. live on a different continent.

What temperature does ice cream freeze at?

Which polygon is a base of the triangular prism?

Solid aluminum metal reacts with aqueous zinc chloride to produce solid zinc metal and aqueous aluminum chloride

How many molecules are in 1.25 mil of oxygen dichlorvos, OCL2?

What is Charles's law? State the definition of the law in words.