Which layer of the sun contains jets of rapidly moving gas called spicules?
a) core
b) corona
c) photosphere.
d) chromosphere

Indicates how many people live in an area

How does data demonstrate the meaning of half-life

Which of the following are good safety measures during a thunder storm. a.) crouch with just the balls of your feet in contact with the ground. b.) rely on rubber-soled shoes to protect you. c.) stand under a tree. d.) go inside a closed building. e.) talk on a phone with a cord.