Answer:
150 million years old
Explanation:
If we have an isotope that has a half-life of 50 million years, we need just need to divide the numbers in order to get to one eight of the full number, than multiply it by 50 million in order to get the result.
If one half is 50 million years, than dividing one more half, which will gives one fourth of the total, will brings us to 100 million. Dividing the one fourth by two will leads to the one eight of the full number, and adding 50 million more years, we get 150 million years. So the rock in question has 150 million years of age.
I think the correct answer from the choices listed above is the first option. Damming a river for hydroelectric power can <span>harm people living downstream. Hope this answers the question. Have a nice day.</span>
Answer:
The questions that could be answered by a distribution map are:
A) Who are the victims of a certain type of crime?
C) How many people own homes?
D) Who can read and who can't?
Explanation:
Distribution maps are used to represent the spatial distribution of a characteristic or attribute on a map. They are very useful for identifying patterns. In the case of questions A, C, and D, a distribution map could help to show where people with a certain characteristic are located. For example, for option A, the map might show that people living in a certain area of town were the victims of a given crime.
Option C could not be answered by a distribution map because it is looking for a complex set of reasons that cannot be mapped out spatially.
