Organic Evolution Ch 4

Question 1

what is astronomy

Answer 1

the study of that part of the universe we can see in the night sky

Question 2

What is the big bang theory

Answer 2

jkj

Question 3

What are photons

Answer 3

The elementary particles responsible for light and electromagnetic radiation

Question 4

what is a cosmic microwave background

Answer 4

the afterglow of radiation from the initial big bang

Question 5

what does the collision theory deal with

Answer 5

proposed by george buffon that a star or comet either collided with our sun, throwing out debris that formed the planets and other bodies or passed close enough to pull out the material that became our planets

Question 6

what is the condensation theory?

Answer 6

accepted by most scientist, and that a huge mass of dust and gas began collapsing under its own gravity as the result of a nearby disturbance like a supernova

Question 7

what is a magnetosphere?

Answer 7

protects from incoming radiation and electrically charged particles carried by solar winds

Question 8

what is the moon composed of?

Answer 8

random debris that clumped up together and got trapped in earths orbit

Question 9

how does radiometric dating work?

Answer 9

dating relies on decay of radioactive isotopes

Question 10

name the order in which the earths made of?

Answer 10

inner core, outer core, mantle,a crust, continetnal crust and a oceanic crust