What do scientist believe caused Venus's unique rotation?

A large meteor struck Venus, reversing it's rotation

Which of the following are possible effects of global warming?

Crop failures, Expansion of deserts, Rise in sea level, More severe weather, Spreading of tropical diseases away from the tropics

What would happen if the greenhouse effect didn't occur on Earth?

The average temperature of Earth would stay below freezing

What are the layers of planet Earth?

Crust, Mantle, Outer Core, Inner Core

How were Maria formed on the moon?

From lava flows that cooled on the surface

What is the Caloris Basin?

Very large impact feature on Mercury

What causes the aurorae?

Charged particles escaping the Van Allen Belts

What causes sunsets to be red?

Dust in the air greatly diminishes blue light

Which is the closest planet to Earth?

B & C alternate which is closer throughout the year

What is the benefit of the Ozone layer?

It absorbs ultraviolet radiation

Why doesn't the Moon have a magnetic sphere?

It doesn't have sizable amounts of iron/nickel in it's core

Radioactive Dating works by

Measuring radioactive decay, characterized by a Half-life

Why doesn't Mercury have an atmosphere?

Mercury's gravity is too weak to hold an atmoshpere

What is unique about Venus's motion?

It's slow, retrograde rotation around it's axis

When does convection occur?

Whenever cool matter overlies warm matter

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Astronomy: Terrestrial Planets

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Inner planets Astronomy review

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Questions 65

Answers

1
What do scientist believe caused Venus's unique rotation?
A large meteor struck Venus, reversing it's rotation
The moons of Venus create too much drag on the planet
The force of all the volcanoes has slowed, and reversed it
That's just the way it came out of the Big Bang
2
All of Earth's infrared radiation escapes into space
True
False
3
A subduction zone is where 2 plate crash into each other raising into Mountain ranges
False
True
4
Why is Venus so hot?
Venus's moons produce a lot of heat that Venus absorbs
geothermal energy
It's proximity to the sun
Runaway greenhouse effect
5
The Ionosphere is transparent to FM and TV
False
True
6
Where are charged particles from the solar wind trapped?
The troposphere
The Ozone layer
The hydroshphere
The magnetosphere
7
The moon stabilizes Earth's climate by maintaining the tilt in Earth's axis
False
True
8
How strong is Venus's magnetic sphere?
Weaker than Earth's, but stronger than Mercury's
The same as Earth's
It doesn't have one
Much stronger than Earth's
9
Which of the following are possible effects of global warming?
Class getting canceled
Crop failures, Expansion of deserts
Rise in sea level, More severe weather
Spreading of tropical diseases away from the tropics
10
What would happen if the greenhouse effect didn't occur on Earth?
The average temperature of Earth would stay below freezing
We wouldn't have a hole in our Ozone layer
The average temperature of Earth would be the same.
We would have a much cleaner atmosphere
11
What is the main source for all of that CO2 on Venus?
American's did it
It was deposited by meteor impacts
Volcanoes
Spontaneously combusting fossil fuels
12
What is/are Scarp?
A made up word
Type of moon rocks that astronauts brought back
Cliffs on Mercury
Mountains on the Moon
13
Like the Moon, Mercury is tidally locked with the Sun
False
True
14
How long is a day on Venus?
18 Earth days
18 Earth hours
243 Earth hours
243 Earth days
15
How many lightening strikes hit the surface of Venus annually?
0
Scientist have been unable to reach Venus's surface to know
130-150
100,000
16
What are the layers of planet Earth?
Troposhere, Hydrosphere, temperaturesphere
Crust, Mantle, Outer Core, Inner Core
Plate tectonics, Magnetosphere
Crust, mantle, Hydrosphere
17
Where do earthquakes and volcanoes occur?
Plate boundaries
Anywhere they want to, who's going to stop them?
In the ocean exclusively
Only on ever on Earth
18
The Moon has a magnetic sphere
True
False
19
How were Maria formed on the moon?
Some meteors that hit the moon were black
From lava flows that cooled on the surface
They're the fossilized remains of the Moon's water Oceans
They just shadows in really deep craters
20
Venus's atmospheric pressure is 90 times greater than that of Earth
True
False
21
The Ionosphere Reflects AM radio waves
False
True
22
Scattering of light by air depends on the color of the wavelength
True
False
23
What is the Caloris Basin?
Very large impact feature on Mercury
Very large area full of "strange terrain"
Crater in Arizona, the biggest on Earth
The crater left by the meteor that reversed Venus's orbit
24
What caused the hole in the ozone layer?
I think chlorofluorocarbons is a made up word.
Pretty sure it's that big word I can't say
chlorofluorocarbons
solar radiation
25
Why is the sky always black on the moon?
High levels of Hydrogen scatter black light
It's not, it's gray and that's why the moon looks gray
Because it is always in Earth's shadow
No atmosphere
26
All of the Sun's light is absorbed in Earth's surface
True
False
27
What are the clouds on Venus made of?
Liquid methane
Venus doesn't have an atmosphere
Sulfur gas
Sulfuric Acid
28
What causes the aurorae?
Charged particles escaping the Van Allen Belts
Nitrogen is scarce at the poles allowing different lights
Reflection of light of the polar ice
Van Allen Belts trapping charged particles
29
What percent of Venus's atmosphere is CO2?
28%
95%
0.93%
0.04%
30
The Moon causes 2 tidal bulges on Earth
True
False
31
What causes sunsets to be red?
Nitrogen is bipolar
Dust in the air greatly diminishes blue light
The sun is closer to Earth at this time, overpowering blue
Dust in the air reflects red light
32
Which is the closest planet to Earth?
The Moon
Venus
Mars
B & C alternate which is closer throughout the year
33
This is where convection takes place, responsible for the weather.
Troposhpere
Ozone layer
Ionosphere
The Topsphere
34
Plate motion is driven by convection
False
True
35
Earth's oceans are also know as?
The Hydrosphere
The Hydrocrust
The Magnetoshpere
The Atmosphere
36
Who Developed the "Giant Impact" theory?
Ancient Greek astronomer, not even trying to spell that name
Seay
Bill Hartmann
George Darwin
37
The Moon is tidally locked with Earth
False
True
38
Venus's surface atmosphere is chaotic and violent
False
True
39
What is the benefit of the Ozone layer?
It absorbs infrared radiation
It absorbs ultraviolet radiation
It holds our Ionosphere in place
It is heavy enough to stop the mesosphere from floating away
40
Does the moon have plate tectonics?
No
It has as many as Earth does
Yes
Only 2 and they don't move
41
The most useful isotope for dating rock samples is?
Uranium-238
Carbon-4
Oxygen-17
U-238
42
Why doesn't the Moon have a magnetic sphere?
Because it has no atmosphere
Earth's gravity pulled it apart billions of years ago
It doesn't have sizable amounts of iron/nickel in it's core
It does, it's just dwarfed by Earth's
43
Radioactive Dating works by
Measuring radioactive decay, characterized by a Half-life
Measuring radioactive isotopes size and shape
Measuring the level of carbon in elements
Measuring the amount of radiation absorbed by materials
44
Rayleigh scattering depends on the 4th power of the frequency
False
True
45
How did scientists accurately measure the distance between Earth and the Moon?
With lasers
Through radio waves while communicating with astronauts
With a lot of fancy math about the time the Moon is visible
Um they went there and just measured the mileage
46
Why doesn't Mercury have an atmosphere?
Mercury definitely has an atmosphere
Runaway greenhouse effect
The sun is too strong and burns it away
Mercury's gravity is too weak to hold an atmoshpere
47
What kind of radiation does the Earth radiate?
Light radiation
Ultraviolet radiation
infrared thermal radiation
Chlorofluorocarbons
48
What is unique about Venus's motion?
It has the shortest year of any planet
It is laying on it's side relative to the other planets
It's very fast rotation around it's axis
It's slow, retrograde rotation around it's axis
49
Areas in the Magnetosphere where charged particles are trapped and spiral around magnetic lines
Magnetopause
Kaiper Belts
Pangea
Van Allen Belts
50
What's the closest planet to Mercury?
Venus
Earth
The Sun
Mars
51
When does convection occur?
Whenever cool matter overlies warm matter
Whenever warm matter overlies cool matter
something to do with sciency stuff
When the Ionosphere is ionized by solar radiation
52
How does the Ozone layer relate to global warming?
It does not relate to global warming
It's where greenhouse gases are most easily trapped
The extra Oxygen pairs with more carbon increasing CO2 level
Oxygen is combustible the xtra Oxygen ignites due to the sun
53
What makes up the majority of Venus's atmosphere?
Carbon dioxide
Sulfur
Nitrogen
Carbon monoxide
54
Does Venus have plate tectonics?
they don't have a crust
Yes, of course
Um does it even matter?
No, now stop asking about them Earth is unique!
55
Venus's upper atmosphere has very high winds
True
False
56
Venus is bright because the amount of volcanic glass on the surface reflects so much sunlight
True
False
57
If Venus doesn't have plate tectonics, how did the volcanoes and mountains form?
It's surface is extremely malleable and "flexes" allowing it
It was just made that way
Meteor impacts
That's not fair! We were told we didn't need to know that!
58
Why is uranium-238 so useful?
It's half-life is almost the same as the age of the Earth
It's half-life is half the age of the Earth
It loses a proton every decade, making measuring simple
It produces it's own radiation
59
What is meant by "retrograde rotation"?
It's traveling back in time
It rotates the opposite direction compared to other planets
It's orbiting the sun in the wrong direction
It is moving much much slower than other planets
60
Tides are due to the gravitational force on Earth from the Moon
False
True
61
Mercury has a magnetic sphere
False
True
62
What stops the lightening from reaching the surface of Venus?
The atmospheric pressure is so low that it escapes to space
Venus has no atmosphere, so lightening doesn't exist there
Venus's surface is made of rubber and repels it
The atmospheric pressure is too great so it stays in the sky
63
Ancient peoples used the moon as a time keeper
False
True
64
Which is the hottest planet in our solar system?
Mercury (closest to the sun)
Venus
Jupiter
Earth (Have you ever been to the desert?!)
65
The surface heating of Earth is also known as
The greenhouse effect
decidedly not the greenhouse effect
chlorofluorocarbons( I really hate this word)
Rayleigh scattering

Astronomy: Terrestrial Planets Flashcards | StudBud