EAPS 105: Asynchronous Quiz 13

Quiz 13: Unit 7. Part 2. Question 7. Watch the Unit 7 Part 2 lecture video and answer the following question: Which statement best characterizes water on the surface of Mars? A) Billions of years ago there were lakes and rivers on the surface of Mars, but none exist today. B) There is no evidence that water ever existed on the surface of Mars C) There have been lakes and rivers on Mars throughout its history, including today. D) There are lakes on Mars today, but they are filled with methane, not water.

A) Billions of years ago there were lakes and rivers on the surface of Mars, but none exist today.

Quiz 13: Unit 7. Part 1. Question 1. Watch the Unit 7 Part 1 lecture video and answer the following question: What are the main components of a primary atmosphere? A) Hydrogen and Helium B) Oxygen and Carbon Dioxide C) Nitrogen and Oxygen D) Nitrogen and Carbon Dioxide

A) Hydrogen and Helium

Quiz 13: Unit 7. Part 2. Question 9. Watch the Unit 7 Part 2 lecture video and answer the following question: What is the primary cause of Earth's seasons? A) Its tilted orbit B) Its elliptical orbit C) Periodic changes in the Sun's energy output D) Variations in the Moon's orbit

A) Its tilted orbit

Quiz 13: Unit 7. Part 2. Question 6. Watch the Unit 7 Part 2 lecture video and answer the following question: Why is liquid water more stable on Earth compared to Mars? A) Because Earth is warmer B) Because Earth has a higher atmospheric pressure C) Because Earth is closer to the Sun. D) Because Earth is bigger.

B) Because Earth has a higher atmospheric pressure

Quiz 13: Unit 7. Part 2. Question 8. Watch the Unit 7 Part 2 lecture video and answer the following question: Why is it important to know how long Mars had water on its surface? A) Because that would determine if Mars ever had plate tectonics. B) Because the evolution of life takes time. C) Because we wish to know if Mars was ever in the habitable zone. D) Because that would tell us how long it took Earth to form oceans.

B) Because the evolution of life takes time.

Quiz 13: Unit 7. Part 1. Question 3. Watch the Unit 7 Part 1 lecture video and answer the following question: In addition to the temperature of a planet's atmosphere, which of the following factors strongly influence the velocity of an atmospheric gas molecule? A) The mass of the planet B) The atomic weight of the gas molecule C) The density of the planet's atmosphere D) All of the above

B) The atomic weight of the gas molecule

Quiz 13: Unit 7. Part 1. Question 4. Watch the Unit 7 Part 1 lecture video and answer the following question: Which of the following is not a major difference between the atmospheres of Venus and Mars? A) The temperature B) The pressure C) The composition D) All the above

C) The composition

Quiz 13: Unit 7. Part 1. Question 2. Watch the Unit 7 Part 1 lecture video and answer the following question: In addition to the mass of a planet, which of the following factors influences the escape velocity from the surface of a planet? A) The strength of the planet's magnetic field B) The temperature of the planet's atmosphere C) The radius of the planet D) All of the above

C) The radius of the planet

Quiz 13: Unit 7. Part 2. Question 10. Watch the Unit 7 Part 2 lecture video and answer the following question: Which is a consequence of Uranus spinning on its side compared to the other planets? A) It does not have seasons. B) Its summer and winter are extremely short compared to its spring and fall. C) It has ice caps on its equator. D) Its summers and winters are a 21-year-long day and night, respectfully.

D) Its summers and winters are a 21-year-long day and night, respectfully.

Quiz 13: Unit 7. Part 1. Question 5. Watch the Unit 7 Part 1 lecture video and answer the following question: How did Earth achieve its oxygen rich atmosphere? A) Initiation of plate tectonics scrubs carbon dioxide leaving oxygen behind. B) Volcanism released water that broke down into hydrogen which escaped the atmosphere and oxygen that was retained. C) From comet impacts D) The emergence of oxygen producing bacteria.

D) The emergence of oxygen producing bacteria.