Answer:
the type of problem that exist are overcrowding within certain places such as some areas in Asia. pollution which is caused by the burning of coal and other fossil fuels for energy which tears the ozone layer into pieces and cause smog within city cause harm to people with asthma or other breathing problems and acid rain which causes harm to the environment and causes global warming which melts the ices caps.
how we contribute, is to use more efficient and clean energy sources such as solar power, wind turbines, hydroelectricity ( the use of water within dams tp create energy), etc. recycle products after use such as soda cans, plastic bottles, etc.
this is all i could come up with i hope this helped
Explanation:
Answer:
Triangle DBC and YXW are congruent
Explanation:
you tell from the red lines on the triangle
IJH has one red line on one side and three on the other while the other triangles had three on one side and two on the other
True, all polygons are closed
Answer:
lumber
Explanation:
trees are renewable, therefore lumber is a renewable resource
