Convection in the upper mantle

magma injection at the spreading boundaries

gravity pulling the plates downward at subduction zones

these are three theorized causes of?

Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?

Which of the following is not a benefit of genetically modified foods? a.pest-resistant crops b.herbicide-resistant crops c.plants that do not require water?

What is one reason why transpiration is important in plants? question 19 options: it produces food from the sugar in the plant cells. it enables the flow of water out of the plant. it produces carbon dioxide in the leaves of the plant.