How did Mendel make sure that some plants cross pollinate

In what way does the Drake equation combine the various factors (e. g., fraction of stars with planets, fraction of planets that can support life) in an attempt to determine the number of technically advanced civilizations existing elsewhere in the

Is "shooting star" an appropriate name? why or why not?

The nickname of sub-saharan africa

What would most likely happen if the carbon dioxide in earth's atmosphere were reduced to half? a. earth's surface would become cooler b. the ozone layer will become thicker c. there would not be enough oxygen to breathe d.

These countries occupy the horn of africa

Mid-ocean ridges normally form where tectonic plates are

Which river serves as the partial border between the u. S. And mexico?

Which factor was Wegener unable to explain that prevented many geologists from accepting his theory of continental drift? A. How the continents in the Northern Hemisphere fit together B.

Where are most earthquakes found?

a landform characterized by high evaluation and a more or less level surface is called a Mountain b plane C plateau d Hill