Answer:
A. costly.
Explanation:
The word marginal means costly in the field of economics. In general, the meaning of marginal is small, tiny and low. Marginal refers to the focus on the cost on the product or profit that is earned from selling of that product. Companies use marginal analysis as a tool in order to help them maximizing their profits so here in the sentence marginal refers to the cost.
Answer:
1. Market economy - In a market economy, the government has very little to do with the decisions regarding investment, production and distribution. Instead, these ideas come from the supply and demand that consumers create. 2. Mixed economy - A mixed economy companies private and public enterprises which has some government influence. 3. Socialist economy - A socialist economy is control by the government but still allows small ownership of productions and some say from individuals. 4. Communist economy - Controlled by the government with no influence from the public. Not a democratic society at all
Explanation:
It is called plate techtonics
