Exam quiz

How are humans causing a 6th mass extinction? Choose all that apply.

Cutting down trees

Burning fossil fuels

Eating chicken

Littering

Why has life been in the ocean for so long?

How old is earth?

4.6 thousand years

4.6 billion years

4.6 million years

6.4 million years

How many mass extinctions have there been?

Paleozoic

Current era

age of reptiles

Longest era

2nd

Precambrian

Current era

age of reptiles

Longest era

2nd

Mesozoic

Current era

age of reptiles

Longest era

2nd

Cenozoic

Current era

age of reptiles

Longest era

2nd

What is the ultimate cause of all mass exctinctions?

Volcanoes

asteroid impact

lack of oxygen

rapid climate change

Infared

Harmful radiation that we canNOT see, but it harms us and causes diseases such as skin cancer, etc.

Light we can see as the colors of the rainbow

Radiant energy felt as heat and canNOT be seen

Visible

Harmful radiation that we canNOT see, but it harms us and causes diseases such as skin cancer, etc.

Light we can see as the colors of the rainbow

Radiant energy felt as heat and canNOT be seen

Ultraviolet

Harmful radiation that we canNOT see, but it harms us and causes diseases such as skin cancer, etc.

Light we can see as the colors of the rainbow

Radiant energy felt as heat and canNOT be seen

Name the four greenhouse gasses and their symbols

What is the average temperature of Earth

57˚F

57˚ C

56˚ F

56˚ C

Explain why the greenhouse effect is important.

What is albedo?

The reflectivity of a mirror

The reflectivity of a surface

A mirror

A surface

What is the most common gas in our atmosphere?

Methane

Carbon Dioxide

Oxygen

Nitrogen

The _____ is the largest layer in our atmosphere

What is the lowest layer of our atmosphere?

Stratosphere

Troposphere

Mesosphere

Thermosphere

Give two reasons why we need the atmosphere

Where is air pressure greatest?

Lower down

Higher up

Correct the following statement : The Age of Reptiles occurred during the Precambrian era

Paleozoic

Mesozoic

Permian

No error

Correct the following statement: Venus is unable to support life due to the runaway greenhouse effect.

Mars

Mercury

Earth

No error

Shadows in summer are generally shorter than in winter.

True

False

How long does a full rotation take?

24 hours

24 days

365 hours

365 days

How long does a full revolution take?

24 hours

24 days

365 hours

365 days

The larger the angle of separation, the longer the shadows.

true

false

Why do you need to have a leap year. Explain your answer.

Give two reasons why it is colder in winter than summer.

What is the difference between rotate and revolve.

Differences in temperature on Earth can be explained by

The curvature of Earth

The smooth surface

The rocks

The line

Bonus : When are we closest to the Earth

The suns rays are least direct by the...

equator

poles

Santa Claus

shimmy dong

Eccentricity

how elliptical Earth's orbit is

the wobble of Earth's axis

the change in Earth's tilt

Precission

how elliptical Earth's orbit is

the wobble of Earth's axis

the change in Earth's tilt

Obliquity

how elliptical Earth's orbit is

the wobble of Earth's axis

the change in Earth's tilt

Which statement explains why seasons occur?

Teletubbies

The Earth's revolution

Earth's tilt

The Earth's rotation

What is the Goldilocks Zone and why is it important?

Why does daytime and nighttime occur on Earth?

What % of water is available for drinking.

75%

Any place water is stored is called a(n)

What is a molecule made of?

12oxygen 12 hydrogen

2 oxygen 2hydrogen

2 oxygen 1 hydrogen

2 hydrogen 1 oxygen

Congratulations you just finished the "exam." How confident are you about your grade?

25%

50%

75%

100%