Human Impact: Global Climate Change

Some greenhouse gases are naturally present in the Earth's atmosphere

• True
• False

Pick the most accurate statement from the list below.

• Greenhouse gasses, even in the smallest amounts, are dangerous for our planet.

• There is no correlation between temperature change and the concentration of Carbon dioxide on Earth.

• A certain amount of Carbon Dioxide is naturally occurring and Earth needs CO2 in the atmosphere to make our planet livable.

• Ice core studies have shown that Carbon Dioxide levels have remained relatively constant over the history of our Earth.

The average temperature of the surface of Earth has increased approximately 1°C in the past century. Which reason best explains this increase in temperature?

• lower levels of ozone in the atmosphere
• lower levels of nitrogen in the atmosphere
• higher levels of carbon dioxide in the atmosphere
• higher levels of oxygen in the atmosphere

Which of the following is the best conclusion that can be made from this graph?

• atmospheric carbon dioxide levels have been decreasing since 1960
• Hawaii has a lot of carbon dioxide
• humans have been working hard to decrease carbon dioxide levels
• atmospheric carbon dioxide levels have increased steadily since 1960

Which of the following is contributing to an increase in carbon dioxide in the atmosphere? Choose all that apply.

• deforestation

• planting more trees

• oceans acidification

• burning more fossil fuels

Which natural process removes carbon dioxide from the atmosphere?

• forest fires
• volcanic eruptions
• cellular respiration
• photosynthesis

Which of these is a consequence of global warming to our oceans? (choose all that apply)

• Acidification: Ocean is becoming more acidic.

• Sea level is rising due to land ice melting.

• Coral bleaching which results in them dying.

• Animals are getting strangled by plastic 6 pack rings.

Which of the following is a consequence of global warming? (Choose all that apply)

• Increased spread of disease carrying insects

• More biodiversity

• Less severe storms and weather.

• Increased forest fires and drought.

• Species extinction

Global climate change is best defined as:

• the change in the amount of oxygen in the atmosphere

• an increase in Earth's temperature over time

• a decrease in Earth's temperature over time

• a decrease in the amount of carbon dioxide in the atmosphere

Which of the following are true statements about the greenhouse effect? Select all that apply.

• It is a natural occurrence that keeps our planet warm

• The effect is increased by human activities

• It is caused by the earth's magnetic field

• Carbon dioxide, methane, and water vapor play a role in the greenhouse effect