Which statement BEST describes how greenhouse gases act as natural insulators in the Earth's system? A) The gases absorb and emit a part of the heat reflected by Earth’s surface. B) The gases receive the Sun’s heat directly and deflect a part of it toward Earth’s surface. C) The gases are formed by the burning of fossil fuels, as a result of which they are very hot. D) The gases react with each other in the presence of sunlight and release energy in the form of heat.

Plzz hurry im being timed during times of vigorous physical activity, muscles require a constant supply of oxygen. how does the body respond to these needs? a. breathing rate and heart rate both decrease. b. breathing rate and heart rate both increase. c. heart rate decreases, but breathing rate remains stable. d. breathing rate increases, but heart rate remains stable.

Ateam from new york presbyterian hospital is conducting a study about a recent increase in cases involving both excess sweating and kidney stones. what would the team need before it draws a conclusion about the cases? medications that are specifically designed to treat the sickness machines that are built to process blood and reduce symptoms until patients are healthy again data that profile the various patients who report these symptoms proof that the excess sweating is related to the excessive kidney stones

Which is the graph of the piecewise function f(x)? f(x) = image for option 1 image for option 2 image for option 3 image for option 4