PLEASE ANSWER CORRECTLY! THIS IS DUE TODAY. (NONSENSE WILL BE REPORTED)
Thank you so much in advance!
Choose the letter of the best answer in each item and write it on a separate sheet of paper.
1. The most accepted theory about the formation of the universe which explains that it continues to expand
a. big bang theory
b. divine creation theory
c. steady state theory
d. oscillating theory
2. The following are light elements EXCEPT;
a. helium
b. hyd
c. lithium
d. iron
3. The process of forming elements is known as;
a. generation
b. genesis
c. nucleosynthesis
d. synthesis
4. Light elements such as hydrogen and helium are formed through the process of
nucleosynthesis.
a. big bang
b. fusion
c. stellar
d. supernova
5. Which element is the lightest and at the same time the most abundant in outer
space?
a. hydrogen
b. helium
c. lithium
d. iron
6. A reaction in which two or more nuclei combine to form heavier nuclei.
a. combustion
c. nuclear Fusion
b. nuclear fission
d. nuclear synthesis
7. What element can be formed when three atoms of helium are fused?
a. carbon
c. oxygen
b. hydrogen
d. silicon
8. Which of the following elements DOES NOT belong to the group?
a. beryllium
b. silicon
c. iron
d. oxygen
9. The process in which elements are formed at the center of a star.
a. big bang nucleosynthesis
c. stellar nucleosynthesis
b. nuclear fusion
d. supernova nucleosynthesis
10. Elements bigger than Iron are formed through.
a. big bang nucleosynthesis
b. nuclear fusion
c. stellar nucleosynthesis
d. Supernova nucleosynthesis
11. When Carbon atom is combined with Helium atom, the element be formed.
a. magnesium
b. neon
c. oxygen
d. silicon
12. Average stars have longer life span than massive stars. This is
a. they have less fuel to burn
b. they have more fuel to burn
c. they burn their fuel at faster rate
d. they burn their fuel at slower rate
13. Our sun is in what phase of its life cycle?
a. main sequence star
b. planetary nebula
c. red giant
d. white dwarf
14.Which of the following contains only heavy elements?
a. carbon, lithium, neon
b. carbon, silicon, magnesium
c. carbon, beryllium, helium
d. helium, carbon, hydrogen
15.In which stage do massive stars explode and release large amount of energy?
a. main sequence
b. protostar
c. super nova
d. white dwarf


Were you able to label all the stages of star? Review the hints/clues in the previous activity. You will notice that following the sequence will reveal what happens in each stage of star.
To understand further, answer the following questions below.

1. What element from space is pulled by gravity and turn into a protostar?
2. What will happen if a low massive main sequence star runs out of hydrogen fuel?
3. How are heavy elements such as Carbon, Oxygen and Neon formed during star formation?
4. Why is it impossible for any matter such as light and radiation to escape from a black hole?
5. Why do you think massive star has shorter life span than average star?