Explain how boundaries can have an environmental impact on countries of either side

i am a little confused myself with what goes with the letters and what goes with the numbers but ill do my best to you

the cordillera states and grand canyon are along the southwest u.s. and northern mexican pacific.

the great plains and southwest desert are also the prairie and home to many earthquakes too .

the coastal plains have poor soil and many factories started in the south.

is this what u needed? if not i can see what i can do

b.

developed countries have tended to improve the environment, while developing countries have tended to damage it.

a supercell is a thunderstorm with a deep, persistently rotating updraft. supercells are the least common form of thunderstorm yet they are potentially the most violent. large hail of greater than baseball size, strong damaging winds, and tornadoes can accompany these storms.

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