Answer:
D. Carbon/nitrogen dating
Explanation:
- The geologist uses a variety of the methods to date the ricks and these forms the radiometric dating, and the tree rings, and ice cores. And the radiometric technique is one of the most useful methods to date the rocks in terms of establishing their ages and by the use of the carbon C-14, isotope.
- <u>Some conditions for the dating include the variations in C ratio in the air, isotopic fractionation, and their contamination. As the carbon has an average; the life of about the 40 years, and is 14 is produced in the upper layers of air and the stratosphere by the interaction of the thermal neutrons and the nitrogen atoms.</u>
Answer:
Common examples include the reflection of light, sound and water waves. The law of reflection says that for specular reflection the angle at which the wave is incident on the surface equals the angle at which it is reflected.
Explanation:
I hope it helped
By looking at the map that shows a portion of the western United States and Canada. The graph that best represents the average monthly air temperature for both Vancouver and Winnipeg is the fourth graph or number 4.
Right now people live typically in cities which are comparatively old, so the relevant question here is where did people choose to settle in the past.
In the past it was very important for people to live next to water sources- it was a source of drinking water, allowed defence and trade. So the correct answer is "near bodies of water"
Sociology (the study of people and society)
