Lava rock is used in building roads, and question 4 options: pumice, a glass that comes from lava, is used for grinding and polishing materials they use pumice, a glass that comes from lava, for grinding and polishing materials

Your "pumice, a glass that comes from lava, is used for grinding and polishing materials".

This would be your correct answer, mainly because, after noting down a comma, we would (NOT) want to rephrase the topic, or even to restate the topic as well. And based on this, if we have noticed in our options, the first one, this sentence does not restate the topic after noting the comma.

Your "pumice, a glass that comes from lava, is used for grinding and polishing materials".

The Answer is "A"

Explanation:

They are different species

The answer would be c. logical because it is explaining how the device is tempting which makes it logical

Dogs have been considered man’s best friend for decades! most likely because of their kind and loyal nature. they make splendid companions. their loyalty is beyond compare and after all, a dog is the only thing on earth that loves you more than he loves himself! dogs see us as their friends and leaders, they’ll do anything in their power to ensure your comfort and safety.