A student designs an experiment to study whether land or water holds heat longer. She takes two paper cups and labels them 1 and 2. She fills cup 1 with water at room temperature and cup 2 with sand to the same height. She inserts a thermometer into each cup. What is the next step she should perform?

The next step is to subject the cups to a low temperature environment.

Explanation:

If the student wants to analyze whether the earth or water has a higher heat retention, he must submit a sample of soil and a sample of water to a low temperature environment and analyze which of the two samples, takes longer to freeze. In this case, after separating two paper cups with samples of water and sand at room temperature, the student must take these two samples to a cold environment such as a freezer or a bathtub with ice.

your answer would be (b)

the correct answer is a) egypt and china.

egypt and china are two of the world’s oldest civilizations known by man. both ancient empires have left a great historic and cultural legacy to the world through archeology. both civilzations developed complex social relations, had deep religious beliefs, had dominion of agriculture and left writing records to understand their customs and culture.

among the requirements to consider a civilization, we find urbanization, writing records, a place of residence, agriculture methods, technological specialization, means of transportation, currency, population density, social stratification, and political integration.