answer with short answers for the 2 questions

1. Climate change is probably the most serious threat to human existence on Planet Earth. The main cause of climate change is global warming. First, indicate the one molecule that alone is most responsible for the earth’s warming. Second, describe at least two possible approaches to reducing the abundance of this molecule in the atmosphere.?

2. Each day on your walk along a pathway near a wooded lot, you notice one of the plants you pass has yellow leaves. At first you think the plant is senescent (dying of old age), but over the course of several days you notice that the plant is not dying, but rather it’s growing rapidly. You know plants grow because they photosynthesize, and that photosynthesis requires chlorophyll, which is green, not yellow. How do you explain this plant’s rapid growth?

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