In your own words, explain a crucial piece of evidence that an ancient greek astronomer could have used to support the geocentric model of the solar system.

Many kangaroo rats live in the sonoran desert of the southwestern united states. they have a variety of adaptations for living in the desert. under which circumstance would the kangaroo rats of the sonoran desert be most likely to develop new adaptations by natural selection?

Look at the picture below . what does this picture represent ?

Which of these resources is used worldwide to make construction products, pottery, and porcelain