Often, waterfalls form as streams flow from soft rock to hard rock. This happens both laterally (as a stream flows across the earth) and vertically (as the stream drops in a waterfall). In both cases, the soft rock erodes, leaving a hard ledge over which the stream falls
Answer: A) import substitution.
Explanation:
Import substitution is the process of replacing items sourced solely from other countries with domestic production/industries. It reduces or eliminates the reliance on importation and is usually put in place for key products.
It is also practiced by developing countries or economies as a policy to reduce dependency on other countries, as well as limit the effects of foreign trade on the foreign exchange market.
Answer:
D. They dug drainage ditches. i think
Explanation:
