The four types of galaxies are spiral, barred spiral, elliptical, and irregular <span />
Answer:
Potassium argon dating
Explanation:
Potassium argon dating is a method used in determining the origin of a rock. I is done by comparing the ratio of radioactive argon to radioactive potassium in the rock. This method is used to date rocks that are thousands of million years old.
the assumptions made when using the Potassium argon dating include :
- no argon was left after formation of the rock
- no argon has either entered or escaped the sample since it was formed.
The Andes are labeled with number 4.
The region labeled with number 3 is Patagonia.
As a way to ensure that deaf and blind individuals would be able to live and work in the community of their choice
Answer:
I believe the answer is A.
Explanation:
NAFTA stands for North American Free Trade Agreement. It eliminated all tariff & non-tariff barriers between the US, Mexico, and Canada.
