EE105 FINAL NEWEST ACTUAL EXAM WITH COMPLETE
QUESTIONS AND ANSWERS/ VERIFIED/GRADED A+/ 100%
GUARANTEED PASS.
Who was Melvin Slipher?
discovered 12 galaxies beyond milky way(all reddish in color)
Which are the most radioactive atoms?
Uranium(U), Thorium(TH) and Potassium(K)
what was earths first atmosphere made up of?
CO2, sulfur compounds and water, first rain was acidic
when did life begin in the oceans?
3.8 billion years ago
Relative to the age of the earth, human-like species have only
existed for
.04%
Page 1 of 69
,Early life on earth..
all of the above
What caused the Cretaceous-Tertiary extinction?
an asteroid impact led to end of reptiles and the start of the
age of mammals
Humans on earth...
settled the americas during the last 15000 years and emerged
during the ice age
the current human population on earth is...
just over 7 billion
what was earth's early atmosphere derived from?
volcanoes
Page 2 of 69
,what is the core of the earth principally composed of?
iron
when do the oldest rocks within the continents date back to?
4 billion years ago
T/F: A rock sample from saturn, if brought back to earth, would
be much heavier than any common earth rock
False
what does the fusion of hydrogen atoms create?
stars
what heats the center of the earth?
fission/radioactivity
T/F: The universe is expanding today
true
Page 3 of 69
, T/F: The solar system is expanding today
False
T/F: The galaxy is expanding today
False
Who confirmed the theory of an expanding universe?
Edwin Hubble
What kind of energy fuels planets and their moons?
radioactivity
What is Pluto's atmosphere made up mostly of?
methane
Why do galaxies have a reddish color?
due to the Doppler effect of moving away
Page 4 of 69
QUESTIONS AND ANSWERS/ VERIFIED/GRADED A+/ 100%
GUARANTEED PASS.
Who was Melvin Slipher?
discovered 12 galaxies beyond milky way(all reddish in color)
Which are the most radioactive atoms?
Uranium(U), Thorium(TH) and Potassium(K)
what was earths first atmosphere made up of?
CO2, sulfur compounds and water, first rain was acidic
when did life begin in the oceans?
3.8 billion years ago
Relative to the age of the earth, human-like species have only
existed for
.04%
Page 1 of 69
,Early life on earth..
all of the above
What caused the Cretaceous-Tertiary extinction?
an asteroid impact led to end of reptiles and the start of the
age of mammals
Humans on earth...
settled the americas during the last 15000 years and emerged
during the ice age
the current human population on earth is...
just over 7 billion
what was earth's early atmosphere derived from?
volcanoes
Page 2 of 69
,what is the core of the earth principally composed of?
iron
when do the oldest rocks within the continents date back to?
4 billion years ago
T/F: A rock sample from saturn, if brought back to earth, would
be much heavier than any common earth rock
False
what does the fusion of hydrogen atoms create?
stars
what heats the center of the earth?
fission/radioactivity
T/F: The universe is expanding today
true
Page 3 of 69
, T/F: The solar system is expanding today
False
T/F: The galaxy is expanding today
False
Who confirmed the theory of an expanding universe?
Edwin Hubble
What kind of energy fuels planets and their moons?
radioactivity
What is Pluto's atmosphere made up mostly of?
methane
Why do galaxies have a reddish color?
due to the Doppler effect of moving away
Page 4 of 69
