The first mass extinction that occurred between the Paleozoic and the Mesozoic Era, caused the extinction of which organism?
O Wooly mammoth
O Dinosaurs
O Trilobites
Flying Reptiles

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

The point along a planet's orbit where it is closest to the sun is called the

Four statements about the development of the atomic model are shown below. a: electrons have wavelike properties. b: atoms have small, negatively charged particles. c. the center of an atom is a small, dense nucleus. d: atoms are hard, indivisible spheres. which order of statements represents the historical development of the atomic model? c-d-a-b c-d-b-a d— в-а — с d-b-c-a