Answer:
The ratio will be 1:400,000.
Explanation:
An original map of scale 1 ratio 200,000 is enlarge twice then the ratio will be 1 : 400,000. Due to twice the ratio we can see the map more clearly as compared to the previous one. Due to twice enlargement of the map, we collect more information about the places we study and we can see many very object on the map which can't be seen earlier when the ratio is 1: 200,000 so we can say that twice enlargement makes the map more visible.
Answer:
Radioisotopic dating as a new technology has really helped to determine the age of the earth.
Explanation:
The actual age of the earth has been a subject of wanton speculation among different groups of people. Speculations arise from religious, cultural and philosophical perspectives.
However, studies using many radioactive isotopes believed to be present from the origin of the Earth and having extremely long half lives have been most helpful in determining the age of the earth. Radioisotopic dating is a common technique used to determine the age of ancient artifacts. It has shed a great light on the possible age of the earth.
Hence the application of radioisotopic dating as a new technology has really helped to determine the age of the earth.
The atmospheric layer represented by F is called the ionosphere. It is the upper layer of the earths atmosphere. It is ionized by solar radiation which has an electrical charge. Radio waves can be broadcast all over the world due to the radio waves reaching the ionosphere and reflecting back.
Answer:
first answer is-
D. Salsa dancing becomes popular in Miami, Florida, due to a large Latino population.
secound answer is-
D. the United States
Explanation:
