Molten liquid rock inside earth's mantle is called

By the triangle inequality theorem, if two sides of a triangle have lengths of 3 and 7, what are all the possible lengths of the third side? a) 3 < x < 8 b) 3 < x < 7 c) 4 < x < 10 d) 5 < x < 7

The larges lakes in the world are found in: asia europe north america south america

Which of the following areas has the highest population density?