Which of the following statements best describes the relationship between the natural resources of the united states and canada and the environmental issues facing both countries?
a. both countries produce large amounts of iron, lead, copper, gold and silver.
b. environmental problems such as air and water pollution are causing natural resources like fossil fuels and lumber sources to disappear.
c. the natural resources directly cause all of the environmental problems.
d. the methods used to

b. Environmental problems such as air and water pollution are causing natural resources like fossil fuels and lumber sources to disappear.

The most powerful States, specifically Canada and the United States, are competing because of the decline in the sources of fossil fuel and increase in the energy demands.

The countries are trying hard to preserve and secure the nonrenewable sources around the world which are on the verge of depletion. Not only the overuse of the resources is responsible for their extinction, but the harmful effects of the pollution is adding into the problem. However eforts are being made by the United States and Canada to manage and enhance their energy security by using renewable energy sources.

the two sets of lines are :