Answer:
to show points of interest where visitors can go
Explanation:
a road map does not show crime or weather. It does show boundaries but tourists are looking for points of interest
Answer:
After three half-lives, it is 7:1
Explanation:
- The rate at which the decay of the radioactive isotope is said to be half-life and is represented as the half-life of the atoms and the matter to disintegrate itself.
- The two radioactive isotopes are K 40 and Ar 40. After the K-Ar dating, they contain minerals such as the clay mica and the temphra minerals and Half-life of the K 40 is 1.3 more than 100,000 years i.e 10x9 years for Ar 40.
- <u>Thus the K 40 has to divide as three half-lives have passed if the ratio of argon to potassium atoms is 7:1. At the end of one half-life, the ratio of the number of argon to potassium atoms is 1:1. and two half lives its 3:1 thus after the third half-life it becomes as 7:1.</u>
It's B. The exact coordinates are: 18°56'S and 47°31 'E
Answer:
Hayward fault
While the San Andreas fault gets much of the attention, it's the Hayward fault that quake experts consider the most dangerous fault in America.
Explanation:
