Author Question: While the orbits of planets are nearly circular, the eccentricities of the orbits of ________ are ... (Read 69 times)

nramada · **on:** Jul 27, 2018

While the orbits of planets are nearly circular, the eccentricities of the orbits of ________ are near one.

Fill in the blank(s) with correct word

Question 2

Briefly explain how an impact event 65 million years ago could have caused the extinction of the dinosaurs.

What will be an ideal response?

kaylee05 · **Reply #1 on:** Jul 27, 2018

Answer to Question 1

comets

Answer to Question 2

It could have kicked up enough dust to darken the sky for years, causing a substantial decrease in plant life. This would have disrupted the food chain. As a result, the large, herbivorous dinosaurs would not have found enough plants to eat and the carnivorous dinosaurs would have perished as a result of a substantial decrease in other animals to eat.