Reference no: EM133421605
Questions
1. In the experiment with the huge gas-powered gun, what happened to the amino acids that were charged into the gun?
a. The amino acids were destroyed by the extreme pressure generated by the gun
b. The amino acids remained tact and the same, no change
c. The amino acids were altered into nucleic acids
d. The amino acids were linked together to form peptides by the gun
2. As cyanobacteria proliferated adfoss the Earth, the planet began to transform. From the choices below, which was NOT a consequence of cyanobacteria?
a. They spread the "seeds of life"
b. Iron began to oxidized
c. Ultraviolet radiation would be blocked from the Earth
d. Earth would be smothered in a waste gases
3. What do fossilized stromatolites suggest?
a. Cyanobacteria utilized methane as food sources
b. Primitive microbes may have used photosynthesis
c. Microbes might have grown in the depths of Earth
d. Microbes formed colonies very early but very slow
4.Based on the documentary, why did microbiologists study caves filled with hydrogen sulfide?
a. to discover how the gas accumulated in the caves
b. to understand how toxic the gas can be utilized for fuel
c. to study whether life could survive in the harsh environment
d. to analyze how hydrogen sulfide reacts with oxygen to forms sulfuric acid
5. What evidence allowed some scientists to believe life care from outer space?
a. Mier's experiment not corresponding to the real environment of the early Earth
b. Ancient fossil records from Gregnland consistently display organic carton
c.An innate human obsession with So-fi that has so many Hollywood movies
d. Another planet old body collided with Earth
6. According to the documentary the eariest evidence to suggest life (micro-fossils) on earth is
a. 3.5 bitan years ago
b. 4 4 billion years ago
c. 3.8 billion years ago
d. 4.5 bilion years ago
7. How many amino acids have been found from meteorites?
a. more than 100
b. more than 10
c. More than 70
d. More then 30
8. During the first 600 million years of Earth, comets and asteroids pounded our planet. According to the documentary what were the effects of this heavy bombardment?
a. Caused the oceans to take on an Olive green color
b. The scattering of debris, made the light from sun to become weakened
c. The massive bombardments caused debris so fly into space and form the moon
d. Earth's oceans were vaportzed and crust was melte