HELPP IMA GIVE YOU 20 PONTS PLI The mass extinction of the dinosaurs, approximately 65.5 million years ago, is inferred by most scientists to have been caused by

A)
a large energy surge from the surface of the Sun

B)
the occurrence of a major ice age

C)
an impact event occurring on Earth's surface

D)
earthquakes occurring along crustal plate boundaries

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How do water’s relative densities as a solid and a liquid differ from that of most other substances? water’s solid and liquid forms have different densities, while most other substances have solid and liquid forms with similar densities. water’s solid and liquid forms have similar densities, while most other substances have solid and liquid forms with different densities. water’s liquid form is less dense than its solid form, while the opposite is true of most other substances. water’s solid form is less dense than its liquid form, while the opposite is true of most other substances.