C. There are 20 marbles, and 2 of them are green, so your probability of picking out a green one is 1/10. So if you pick lots of marbles and put them back, the probability stays the same. I would say the answer is true.
I reckon B is True, too.
Answer: 1. Make sure to rephrase to question, example: Why it is important to learn about 9/11. It is important because, learning about the past has an effect on the future. 9/11 also have an impact on our health now. People who were involved in 9/11 could have PTSD, depression.
Explanation:
Answer:
Industrial expansion and population growth radically changed the face of the nation's cities. Noise, traffic jams, slums, air pollution, and sanitation and health problems became commonplace. Mass transit, in the form of trolleys, cable cars, and subways, was built, and skyscrapers began to dominate city skylines.
Explanation:
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