Which of the following is true about mixtures and compounds?
A.
Mixtures and compounds are both made of two or more different substances.
B.
A compound forms when different substances chemically combine to form a new substance.
C.
A mixture contains different substances that are not chemically combined with one another.
D.
all of these

the answer would be b i believe

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?

answer: they produce more slow than unicellular organisms.