Earth's Atmosphere Week 2

Open Ended

Why is it important for humans to study the Earth's atmosphere and its changes?

Multiple Choice

Which of the following best describes the field of meteorology?

• The study of rocks and minerals

• The study of the processes and phenomena of the atmosphere, especially weather and climate

• The study of the ocean and marine life

• The study of plants and their environments

Multiple Choice

What force holds the Earth's atmosphere in place?

• Magnetism

• Friction

• Gravity

• Solar wind

Fill in the Blanks

Name two variable components of Earth's atmosphere that can change in concentration.

Multiple Choice

Which gas makes up the largest percentage of Earth's atmosphere?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Argon

Open Ended

Compare the atmospheric composition of Earth, Venus, and Mars. What is a major difference between Earth's atmosphere and those of its neighbors?

Open Ended

Venus is almost identical in size to Earth, but its atmosphere is very different. List two reasons why Venus's atmosphere might be so different from Earth's.

Multiple Choice

As you move away from Earth's surface, what happens to the density of the atmosphere?

• It increases

• It stays the same

• It decreases

• It fluctuates randomly

Multiple Choice

Which layer of the atmosphere contains the majority of the air molecules and is where most weather events occur?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Fill in the Blanks

The upper boundary of the stratosphere is called the

.

Multiple Choice

At approximately what altitude does the mesopause occur, and what is the typical temperature at this boundary?

• 80 km, -90°C

• 50 km, 0°C

• 20 km, -50°C

• 160 km, 1000°C

Multiple Select

Which of the following statements about the mesosphere are correct?

• Temperatures decrease with increasing altitude.

• The upper boundary is called the mesopause.

• It is the layer where auroras occur.

• It is found above the stratosphere.

Open Ended

Explain why, despite the high temperatures in the thermosphere, a person would still feel cold if exposed to it.

Multiple Choice

What is the main function of the exosphere in Earth's atmosphere?

• It is where atoms and molecules escape into space and satellites orbit the Earth.

• It contains the ozone layer that protects us from UV radiation.

• It is the densest layer of the atmosphere.

• It is responsible for weather patterns.

Multiple Select

Which of the following statements about ozone are correct?

• Ozone is made of three oxygen atoms.

• Ozone is good in the stratosphere but bad at ground level.

• Ozone is the same as the oxygen we breathe (O2).

• Ground-level ozone can harm human health.

Multiple Choice

What is the primary cause of ozone depletion in the atmosphere?

• Chlorofluorocarbons (CFCs) from refrigerants and aerosols

• Carbon dioxide emissions from cars

• Methane from agriculture

• Sulfur dioxide from volcanoes

Open Ended

Explain why stratospheric ozone is important for life on Earth.

Multiple Choice

Why is the term 'ozone hole' considered misleading?

• It is not an actual hole, but an area where ozone has been depleted.

• It refers to a hole in the Earth's surface.

• It means there is no ozone anywhere on Earth.

• It describes a region with extra ozone.

Fill in the Blanks

The international treaty established in 1989 to limit and eliminate ozone depleting chemicals is called the

.

Multiple Choice

Based on the images from 1979, 1989, 2006, and 2010, what trend can be observed regarding the ozone layer over Antarctica?

• The ozone hole over Antarctica has grown larger over time.

• The ozone hole over Antarctica has disappeared completely.

• The ozone hole over Antarctica has remained the same size.

• The ozone hole over Antarctica has shifted to the North Pole.

Open Ended

How do you think meteorology impacts our daily lives and decision-making?

Multiple Choice

What is meteorology primarily concerned with?

• The study of plants and animals

• The processes and phenomena of the atmosphere

• The movement of tectonic plates

• The formation of rocks