Which compound contains a triple bond? 2 C's are connected with a single line, and each has an H attached by a single line above, below, and outside.
2 C's are connected with 2 parallel lines. There are H's connected with single lines above left, above right, below right, and below left of the 2 C's.
A C is connected to an O with 2 parallel vertical lines, and below left to H with a single line and below right to O H with a single line.
2 C's are connected by 3 parallel lines. There is an H connected with a single line to the left and to the right.

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !