The "hardness" of water describes
how quickly it heats and cools
its attraction to other substances
its level of dissolved minerals
how much dissolved oxygen it contains

This element exists in adundance in the sun.explain how you would go about capturing sunlight.would this captured sunlight contain any of the element?

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line