Rockets need thrust in order to fly, but does it always need to be created by an explosion? Explain your answer.

Janelle made a hypothesis bout the uneven temperatures inside her house during winter. she believes that 50% of the ducts are blocked and she plans to investigate. if she wants to prove her hypothesis using scientific processes what should she do next?

Which transition by an electron will release the greatest amount of energy? oa ob oc od

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of