Elizabeth then writes down observations about the rocks. Which of the following is an opinion? A.
The marble rock is prettier than the quartz rock.
B.
The quartz rock has a greater mass than the flint rock.
C.
The marble rock has the greatest mass of the group.
D.
The flint rock has a mass of 30.5 grams.

Which is the function of the hypothalamus in thermoregulation? answers: -sensor -effector -stimulus -intergrating center it's either a or c i believe

Which areas of earth receive the most precipitation on average? a. tropics b. temperate zones c. regions near 30? n and s latitudes d. polar zones 1

Hydrogen has only one electron in its only (and outer) electron shell. if a hydrogen atom were to absorb a small amount of energy, where would bohr say the electron would go? a. fly off the atom b. nowhere, it would just speed up. c. spiral inwards towards the nucleus d. move up to another shell that would form