In the mid-1800s, pioneers who traveled through the great plains to the west faced
a.) summer rainstorms and difficult terrain.
b.) rugged mountains and steep passes.
c,) summer rainstorms and rugged mountains.
d.) steep passes and difficult terrain.

a.) Summer rainstorms and difficult terrain.

Explanation:

Summer rainrstorms and the difficult terrain were the most common issues and made crossing west slow and dangerous. Particularly, traveling through the Great Plains to the West in summer meant that the pioneers would have to battle with more regular severe thunderstorms, which occasioned drenching storms usually accompanied by hail and powerful winds that could destroy wagons and tents.

d. the right to establish a one-house legislature

monitor contract compliance and results of forestry activities to assure adherence to government regulations.  

plan and supervise forestry projects, such as determining the type, number and placement of trees to be planted, managing tree nurseries, thinning forest and monitoring growth of new seedlings.  

establish short- and long-term plans for management of forest lands and forest resources.  

determine methods of cutting and removing timber with minimum waste and environmental damage.  

supervise activities of other forestry workers.

by the way there is no video here.