Question

1. explain the connection between burning fossil fuels and the amount of co2 in the atmosphere. what problems can arise if there is too much co2? 2. describe what zombie fires are and where they are commonly found. why are they called zombie fires? 3. explain what a feedback loop is, and describe the difference between a positive and negative feedback loop. give a brief example of each.

Explanation:

1. Fossil fuels contain carbon. When burned, carbon combines with oxygen to form CO2, increasing its atmospheric concentration. Excess CO2 causes global warming, climate - change related issues like sea - level rise, extreme weather events.
2. Zombie fires are fires that seem to go out but then reignite. They are commonly found in peatlands in cold regions. Called 'zombie' as they come back to life like fictional zombies.
3. A feedback loop is a circular process where the output of a system influences its input. In a positive feedback loop, the output amplifies the input, e.g., melting ice in the Arctic exposes dark surfaces that absorb more heat, causing more ice to melt. In a negative feedback loop, the output counteracts the input, e.g., when body temperature rises, sweating cools the body down.

Answer:

1. Burning fossil fuels releases CO2 into the atmosphere. Excess CO2 can cause global warming and climate - related problems.
2. Zombie fires are fires that reignite after seemingly going out, common in peatlands in cold areas, named for their 'rising - from - the - dead' nature.
3. A feedback loop is a circular system - input relationship. Positive: output amplifies input (e.g., Arctic ice - melt). Negative: output counteracts input (e.g., body sweating to cool down).