What is the symbol for the most common element in the universe

How do antiviral drugs work? in your own words.

The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2

(99 points) be serious! how do farts work? how do you fart without it stinking? serious answers only