Problem 13
Describe the carbon cycle. Explain how carbon is transferred from organisms to soil.
Problem 14
How does the burning of fossil fuels affect the amount of carbon dioxide entering the carbon cycle?
Problem 14
Which of these can people do in order to help reduce global warming? A) burn coal C) conserve energy B) remove trees D) produce methane
Problem 15
How does deforestation affect the amount of carbon dioxide entering the carbon cycle?
Problem 15
What would you most likely find on the leeward side of this mountain range? A) lakes C) deserts B) rain forests D) glaciers
Problem 16
In 1991 Mt. Pinatubo erupted, releasing volcanic particulates into the atmosphere. Temperatures around the world fell by as much as \(0.7^{\circ} \mathrm{C}\) below average during 1992 . How was this global temperature change related to the volcanic eruption?
Problem 17
Infer What might you infer if you find fossils of tropical plants in a desert?
Problem 17
What is global warming? What hypotheses help explain global warming? Explain the relationship between global warming and the level of seawater.
Problem 18
A scientist analyzes the pollen of ancient plants found preserved in lake sediments. The pollen is determined to be from a plant that needs moisture and year-round warm temperatures to grow. Make an inference about the type of climate that area experienced during the time the plant lived.
Problem 18
Describe On a summer day, why would a Florida beach be cooler than an orange grove that is \(2 \mathrm{~km}\) inland?
