When did oceans first appear

The circumference of the circle in the above figure is 128 ft. What is the length of AB? A. 16 ft B. 105.5 ft C. 22.5 ft D. 45 ft

Select the physical barriers. economics mountains religion politics oceans deserts

This type of motion describes a planet seemingly moves backwards in the sky as it appears from Earth. Question 1 options: Antigrade Vintagrade Retrograde Posigrade

What are some white countries outside of europe?

What's countries lie on the Korean Peninsula?

In archaeology, there must be a balance between the explanation of the value and workings of archaeology, revealing the mysteries of past and present cultures, and to promote respect for archaeological sites. True or false?

The blocking off of an estuary from the sea forms a (n)

Why are there few or no clouds in the stratosphere

Why did Columbus use prisoners as part of the crew

Wich american started a settlement in texas in the early 1820s?