What is AD to AB in simplest form

What was depleted by the time that oxygen became abundant

Select the items below that describe natural resource

Under the ancien régime, the state was generally defined as the domain of the sovereign. How was this definition changed by the American and French revolutions? What are the elements of a national identity in the modern world?

What are the differences between how coal forms and how oil & natural gas forms.?

What are the three types of course requirements a student needs to complete to earn a bachelors degree?

Amber is writing to an accountant that she would like to interview to gain information about the career field. What information should she include in her letter?

How do you survive high school

Can we know if we have a soul? What about other people or animals?

Many things happen when rain falls down. Explain what happens to rain as it falls on the surface of: concrete, water, and a slanted/sloped roof. Now, thing about an extra long rainy season.

A slow directional shift of the earth' axis that required 260.000! years to complete called