Climate Change

NO 2 is one of the main components of acid rain which can damage coastal ecosystems and can lead to respiratory infection and asthma . As important note: In china the amount of nitrogen dioxide (NO 2) released in January and February of 2020 was high.

Based on the images which of the following statements best predicts the effect of human activities and the emission of NO 2?

• A. Human activity increases the amount of NO 2 in the atmosphere

• B. Human activity decreases the amount of NO 2 in the atmosphere

• C. Human activity has no impact on the amount of NO 2 in the atmosphere

• D. Human activity impacted the amount of NO 2 in the atmosphere in the past but has no impact now.

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Reef systems in South Florida protect the shoreline against storms and slow beach erosion thus reducing maintenance and repair costs. Which of these is least likely to be considered, from an ecological perspective in the establishment of marine preserves?

• A. limiting the number of visitors to Florida Key reefs systems

• B. requiring licenses so the sports fishing industry will become self-sustaining

• C. maintaining viable population levels for fish and shellfish sold in stores and restaurants.

• D. protecting the reef systems off Biscayne Bay and the Florida Keys to preserve marine diversity.

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If a farmer wanted to shift to organic farming which of the following metrics would she have to plan on having a decrease in?

• A. Yield

• B. Profitability

• C. Soil Quality

• D. Total Costs

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The chart shows the amount of waste created by different types of plastic in Australia.

If a person in Australia wanted to make a lifestyle change to have the greatest impact on their annual waste, which change would have the greatest impact?

• A. Bringing reusable cups to coffee shops

• B. Switching from plastic bags to reusable

• C. Driving less to reduce the amount of tire dust

• D. Changing to cosmetic products that don’t use microbeads

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In Australia, an invasive plant called prickly pear cactus has taken over agricultural land, disrupting its ability to raise livestock or farm crops. A farmer is trying to find a way to control the cactus without using chemicals and has decided to try using a moth native to the cactus habitat that feeds on cacti. After researching, which of the following discoveries would make the moth less environmentally friendly than chemical controls?

• A. Moths cost more than chemicals.

• B. Moths have a short lifespan and you need to ask for more than chemicals.

• C. The moth has been shown to eat some plants native to the area if given a choice.

• D. The moth can only eat cacti and would go extinct on the farm once the cacti are gone.

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A jet stream is a fast flowing current of air several miles in the atmosphere. These currents flow differently throughout the year and have a significant impact on weather patterns. In 2020 the polar jet stream in the arctic region was particularly strong trapping cold air in the arctic. Which of the following could be an effect of polar air being trapped in the arctic?

• A. Countries in the northern hemisphere will have a normal winter.

• B. Countries in the northern hemisphere will experience a colder winter.

• C. Countries in the northern hemisphere will not experience winter at all.

• D. Countries in the northern hemisphere will experience a warmer winter.

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Studies show that if humans were to stop greenhouse emissions today it could take hundreds of years for the Earth to begin to cool to pre industrial revolution temperatures. The major contributor to this is the ocean. Which of the following explains why this is the case?

• A. The ocean stores most of the extra CO 2 and it would begin releasing it back to the atmosphere.

• B. The ocean absorbs most of the excess heat and would begin releasing it back into the atmosphere.

• C. The ocean holds most of the organisms that do photosynthesis and they would die without the extra greenhouse gasses.

• D. The ocean is full of rock and rocks store most of the excess heat and would begin releasing it back into the atmosphere.

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In 2018 several large volcanoes erupted including the Popocateptl volcano in Mexico, which is still erupting today. It continues to pump ash and gas into the atmosphere. If nothing else was affecting the climate, how would the global temperature be affected by these volcanic eruptions?

• A. The temperature would lower due to the ash reflecting UV radiation

• B. The pH of the atmosphere will change

• C. The carbon dioxide that it emits will help to raise the temperature

• D. Volcanoes only affect plate tectonics, not global temperatures

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Ocean acidification is what happens when excess CO2 is absorbed by the oceans. This change in pH can have devastating impacts on aquatic plants and animals. Based on the information in the graph which statement best predicts biodiversity of ocean life now versus the 1960’s?

• A. Biodiversity has been unaffected by ocean acidification

• B. Biodiversity has been unaffected because there has been no ocean acidification

• C. Biodiversity has increased because acidification leads to new opportunities to fill niches

• D. Biodiversity has decreased because ocean acidification has made the ocean uninhabitable by some life

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1. The greenhouse effect is natural as it helps to sustain (keep) life on earth by trapping heat in the atmosphere.

• True

• False

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