Answer:
Wagon Trails
Explanation:
Farmers in the northwest territory were particularly depended on trails of their crops. Stagecoaches, wagon or waterways were the only way for the farmers to get connected with the East. The Northwest Territory included the area west of Pennsylvania, north of the Ohio River, and east of the Mississippi River. The trail caused many hardships for the pioneers because of its continental climate. The trail was a challenge because of the mountains which slowed the wagons.
Answer: Cross the rocky mountains
Explanation:
I believe the answer should be the last one
They are created to influence the public in a particular way
(trying to influence public to vote for a certain person or to dislike the opposing candidate)
The unit is called Ecosystem.
Ecological units comprise concepts such as population, community and ecosystem.
<em>An ecosystem</em> is a community of plans and animals interacting with each other in an particular area. They also interact with their non-living environments (water, earth, sun, soil, climate and atmosphere).
The robins are in relationship with the earthworms because the robins eat them in order to survive and as a part of the food chain. The food chain is a linear sequence of organism through which nutrients and energy pass as one organism eats another. Ecosystems consist of creatures that mutually benefit from each other.
Every year, railroads save consumers billions of dollars while reducing energy consumption and pollution, lowering greenhouse gas emissions, cutting highway gridlock and reducing the high costs to taxpayers of highway construction and maintenance. Freight railroads mean more jobs and a stronger economy.