3. Which is evidence for the existence of dark energy?
Pulsars that seem to be moving closer at an accelerating rate.
Supernovae that are moving away at an accelerating rate.
Black holes that are expanding at a constant rate.
Galaxies that are rotating at a constant rate.
Answers: 3
Biology, 22.06.2019 07:00, Nicaragua505
8) animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. d) a dog is getting hot in the sunlight, so he moves to a shaded area.
Answers: 3
Biology, 22.06.2019 13:50, s2000damian
What is the difference between a meteoroid and a meteor?
Answers: 2
Biology, 22.06.2019 17:30, savannahvargas512
Which layer of the eye completely surrounds the eye except for a dark, round opening called the pupil? a. sclerab. corneac. retinad. choroidthe answer is a sclera
Answers: 2
3. Which is evidence for the existence of dark energy?
Pulsars that seem to be moving closer at an...
History, 29.01.2020 04:49
History, 29.01.2020 04:49