100 Points! Earth Science Test! Can you help me ASAP! Thank you!! 10 Question
1) Redshift is observed when: (1 point)
A) a distant luminous object travels rapidly away from an observer.
B) a luminous object is stationary relative to an observer.
C) a luminous object is traveling alongside an observer.
D) a distant luminous object travels rapidly towards an observer.

2) The stars at the edges of a galaxy are rotating around the galaxy’s center at the same speed as the stars in the middle of the galaxy. How does this provide evidence of dark matter? (1 point)
A) Dark matter absorbs light from outside the galaxy, allowing the light of the stars in the galaxy to show the orbital speeds of the stars.
B) Dark matter subtracts gravity, which allows the stars to rotate at the same speed.
C) Dark matter emits the light that astronomers need to see the orbital speeds of the stars.
D) Dark matter provides the gravity that allows the stars to rotate at the same speed.

3) Which correctly relate dark matter and dark energy to the Big Bang theory? Select the two correct answers. (1 point)
A) Without dark energy, structures in the early universe would never have developed.
B) Because of dark matter, gravitational interactions cause galaxies to develop.
C) Dark energy is the source of 25 percent of the mass of the universe.
D) Through dark energy, the universe is expanding at a faster and faster rate.

4) Drag and drop the words into the correct locations. (2 points)
Dark _ is the only explanation for the structures of the early universe. Clumps of it led to _ in the early universe. Without it, the universe would have _
a) energy b) formation of galaxies c) remained uniform d) matter e) Collapsed inward

5) Which statement about nuclear fission is false?(1 point)
A) Nuclear fission releases large amount of energy.
B) Nuclear fission is used to generate electricity at nuclear power plants.
C) The fuel for nuclear fission is often uranium.
D) Nuclear fission takes place in the core of stars.

6) What type of evidence does cosmic background radiation provide about the origins of the universe?(1 point)
A) It proves that the universe is expanding.
B) It verifies that the early universe was once extremely hot.
C) It supports predictions of the composition of the early universe.
D) It pinpoints the size of the original universe.

7) Which statements about nuclear fission and nuclear fusion are true? Select the two correct answers. (1 point)
A) They both involve one atom splitting into two atoms.
B) They both release large amounts of energy.
C) They both occur in the nucleus of an atom.
D) They both involve two atoms fusing into one atom.

For Number 8 Is the Image!

9) How does the proportion of hydrogen and helium in the universe support the Big Bang theory?(1 point)
A) it shows that only simple elements are present in the universe.
B) It proves that matter must be formed under high temperatures.
C) It is the proportion predicted to be present in the early universe.
D) It demonstrates the rate of expansion predicted by the theory.

10 ) How is gravitational lensing related to dark matter?(1 point)
A) The gravity of dark matter absorbs light from distant sources.
B) Dark matter emits lens-shaped rings of light.
C) Dark matter uses gravitational lensing to create dark energy.
D) The gravity of dark matter distorts light from distant sources.