Answer: First answers is C. Second B
Explanation:
Carbon is added to the environment just by humans and higher animals breathing in oxygen and breathing out carbon dioxide. But by far the biggest contributor of carbon to the environment especially the atmosphere is the burning of fossil fuels which then contribute to the greenhouse gases which in turn cause global warming. Water vapour, carbon dioxide, methane and ozone are the main constituents of greenhouse gas.
Answer:
If I were writing a summary I would include what Lacrosse meant to the Iroquois and Algonquian tribes, how it was originally used, for example, healing and war. Not for sports. I would find the history of Lacrosse and how the tribes invented the game.