4. The age of the universe is thought to be about 14 billion years.
Assuming two Significant figures, write this in POWERs of 10 in years, (b) Seconds

Jason is a body builder. despite being more fit, he weighs more than his brother ryan, who is the same height. which is a possible reason? a. jason has more muscle mass than ryan does. b. jason has more body fat than ryan does. c. jason has more muscle mass and body fat than ryan does d. jason has less body fat than ryan does.

What was the first instrument to ever record an earthquake?

During the past 150 years in the united states, how did energy consumption compare to population growth