Answer:
C. Varieties of an element that differ only in the number of neutrons are called isotopes.
Explanation:
The Earth is approximately 
old. The solar system formed from giant gas clouds which was a part of the solar nebula.
The surface of soil which demarcates two soils of different geological ages is called a unconformity.
Palesol is the soil that lies between sediments or volcanic deposits. If the paleosol is older they have lithified rock.
Hence, option C is true.
Answer:
2. Men interrupt women more; men talk significantly more
Explanation: Research conducted at Stanford university,New York times has highlighted that in group discussions men interrupt women more and talk more significantly too. This is believed to be so because women low representations in the leadership team or position of most organisations. Generally,the researchers are proposing a better women representations to reduce to stop this negative tendencies.
Answer: Economic growth will be negatively affected as there will be a decline in the demand for goods and services.
Explanation:
Economic growth is the increase in the output of goods and services in the economy. A consumption tax on goods consumed would lead to an increase in price which in turn, leads to a fall in the real income of comsumers.
The fall in real income of consumers will lead to reduction in the demand of goods which will also lead to the reduction in the GDP of a country.
It is specifically focused on an argument which defines your goal and the scope of the thesis. Its main purpose is to support and prove your main argument. It's like a person arguing to prove his position which means he is making a claim. If written effectively, a claim statement will keep your readers interested.
