Name three countries from Northwest hemisphere Northeast Hemisphere and southern hemisphere for the Savanna biome

Check all that apply diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials

Which blood cell spend most of their time in the lymphatic system?

Why is taking care of yourself a time management techique