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: The Harappan people used to trade with foreign lands traveling through seas. The seaports found in Harappan civilization state that they were not bound to their own territories. ... It was found that they also imported Jade from China and Cedarwood which were all traded through the rivers such as Sutlej, Ravi, and Indus.
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Sylvia Mendez is an American civil rights activist who contributed to ending <u>school segregation</u>. Mendez is of Mexican-Puerto Rican heritage, and was not allowed to enrol in a "whites-only" school in California. At age eight, Sylvia and her family were involved in the case <em>Mendez v. Westminster</em> (1946). The case ended school segregation in California and contributed to the civil rights movement in other states. Sylvia Mendez was awarded the Presidential Medal of Freedom, the United States' highest civilian honor, on February 15, 2011.
Answer:
D. threat; challenge
Explanation:
Anything that causes an organisms stress process to initiate is called a stressor.
Threat is something that can cause us harm or something which we perceive might cause us harm.
A challenge is a threat, if overcome can cause us to grow our personality.
So, a threat is something which we cannot overcome while a challenge is a threat which we perceive can overcome and will be beneficial for us.
