Answer:
a) The aspect of decreased productivity has not changed the face of American farms.
Explanation:
- Though the productivity of American farms has decreased with time owing to nutrition loss in soil and overuse of the land, the rate of cultivation doesn't seem to have changed.
- Despite decreased productivity, all the land that has been used for centuries is still being brought under cultivation regularly.
- To increase the productivity, it is necessary to give the agricultural lands the required time to regain the nutrition in the soil naturally.
- Unfortunately, this is not seen happening in American farms.
Answer:
b) Forests of giant redwood trees grow in California.
Explanation:
- The Redwood National and State Park is located in California adjacent to the western coast.
- It is spread over an area of about 562 sq. kilometers. It is mainly characterized by the presence of coastal mountains on which there are thousands of giant redwood trees that form a thick forest.
- The forest is home to great biodiversity which houses animals like Roosevelt elks, black-tailed deer, black bears, and mountain lions.
