The amount of carbon dioxide absorbed by plants has doubled over the last 50 years. While this increase could have been caused by a growth in the number of Earth’s plants, what other explanation does the article offer?

The most common economic system in the world is aclosed economy.command economy.mixed market economy.traditional economy.

Imagine you work as a consultant, and your daily job involves listening to the constructive criticism of others. as part of your job, you must listen to opposing viewpoints to make important decisions. in this activity, you are a consulting dam engineer. you must make a decision about four different dams; should they be repaired, taken down, or left alone? you will listen to contrasting opinions about what should be done with the dams before you make the final decision. as the consulting dam engineer, what do you decide to do with this dam? explain your reasoning. by making your decision, did you support the opinions of the mayor and/or the dam safety official? why or why not? (site 1)

What are some of the impacts of humans on the earth?