Explain 2 environmental issues in Africa and how they occur

An externality can be created by a. people working at a production job and enjoying their work b. a production activity but not a consumption activity c. a consumption activity but not a production activity d. a production activity or a consumption activity externalities a. are always positive, and an example is flu vaccinations b. are always negative, and an example is the pollution created by trucks c. can be negative or positive. logging has a negative externality, and education has a positive externality d. can be negative or positive. a negative externality is having to go to school when you would rather go to the beach, and a positive externality is spending time with your friends

Que actos del pueblo simbolizaron el inicio de la revolucion y la caida de la monarquia?

According to the article 13 of the articles of confederation,what percentage of votes by the states was required to ratify any amendments