Click the box next to the Save copy as field so it's selected, and then click the PowerPoint Presentation file from the drop-down list. Select the folder on your computer where you want to save the Keynote file as a PowerPoint file. Click the Save button. Close the Keynote application and open PowerPoint.
This question is archived. That would be igneous rock. Igneous rock is formed by the cooling of molten rock (magma and/or lava). Since there is such and abundance of liquid rock on Earth, it makes igneous rock the most common TYPE of rock.
Answers. Best Answer: The most abundant element by weight is oxygen. The most common minerals that form the rocks in Earth's crust are quartz (silicon dioxide, 52Â½% oxygen) and the feldspar group, which are silicate minerals containing more oxygen by weight than any other elements. Hope this answers your question.. Source(s): college geology.