Read the introduction from an argumentative essay about national parks.

Most people who visit national parks are likely focused
on the experience of visiting natural wonders. However,
they may not realize how much time, money, and effort
are necessary to maintain these parks. National parks
must be preserved.

How could the writer strengthen the claim in this
introduction?

O by focusing on different national parks
O by adding supporting evidence
O by adding a topic sentence
O by focusing on a counterargument

what are local authorities doing to fix the problem

explanation:

in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.

b: to eliminate competition from other farmers