Which conditions suggest that a bond will be covalent? A. The difference in electronegativity between the two atoms is
below 0.4
B. Atoms are from the metal and nonmetal groups.
C. Atoms are both from the nonmetal groups.
D. The difference in electronegativity between the two atoms is above 1.7.

Asun-sized star will spend most of its lifetime as a: white dwarf red giant protostar main-sequence star

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !

What are the necessary conditions for fusion?