Which statement best describes the crust?
a) which statement best describes the crust?
b)it is the outermost layer of earth, composed of solid rock and divided into sections called plates.
c)the crust is made out of solid nickel and iron.
d)the crust is made of molten rock that flows like a thick, gooey syrup.

9. the history of life on earth is recorded in

What happens when water’s salinity increases? mass decreases. freezing point decreases. buoyancy of objects decreases. the amount of dissolved minerals decreases.

Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.