The Venn diagram compares protons with neutrons. Which shared property belongs in the region marked "B"? Is negatively charged
Has mass of 1 amu
Orbits the nucleus
Is positively charged

What are tissues? a groups of tissues that work together b basic units of structure and function c groups of cells that perform the same function d multiple organs that perform a major function

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

Climate like that in the sahara desert have the fastest rates of weathering