Answer:
i believe it is the first statement at the top
1- The Soviet forces constructed
the Berlin Wall to prevent the
escape of East Germans into
West Germany.
2- US president Ronald Reagan
delivered a famous speech
challenging Soviet leader
Mikhail Gorbachev to tear
down the Berlin Wall.
3- Newly independent Hungary
opened its border with Austria.
4- East German leaders gave
orders to open the gates
of the Berlin Wall.
5- The representatives of East
and West Germany signed
the Reunification Treaty.
That is the PLATO answer
The industrial revolution impacted the environment. The world saw a major increase in population, along with an increase in living standards. This led to the depletion of natural resources. The use of chemicals and fuel in factories resulted in increased air and water pollution and an increased use of fossil fuels. With factories typically being heat based and burning coals, toxic waste would be built up and ultimately dumped into nearby rivers. Thus creating the pollution of water and air.