PLEASE HELP!! Which statement is true?
A. The Sun's energy is completely blocked by Earth's atmosphere.
B. The Sun's energy passes through the atmosphere without warming it significantly.
C. The Sun's IR energy is absorbed by greenhouse gases.
D. The Sun's energy is primarily in the UV range.

Joseph has hypothesized that sound travels in waves. if he were following the scientific method, what should he do next? a. ask a question. b. test the hypothesis. c. study the results. d. tell other scientists about his hypothesis.

In a spacecraft, the following reaction occurs: co2(g) + 2lioh(s) -> lico3(s) + h2o(i) (i attached picture of equation) how many liters of carbon dioxide will 4 moles of lithium hydroxide (lioh) absorb? (one mole of any gads occupies 22.4 l under certain conditions of temperature and pressure. assume those conditions for this equation.) 45l 6.0l 3.0l 34l

Which characteristics can be used to differentiate star systems? check all that apply.