Yes, it is hope this helps
Answer:
d
Explanation:
There are two basic types of variable stars: intrinsic variables, whose luminosity actually changes, and extrinsic variables, whose apparent changes in brightness are due to changes in the amount of their light that can reach Earth. A star could be an intrinsic variable because it periodically swells and shrinks.
Answer:
ooh am sorry your question is incomplete
Answer:The primary purpose of a free-trade zone is to remove from a seaport, airport, or border those hindrances to trade caused by high tariffs and complex customs regulations.
Explanation:
Cancer isn’t infectious nor is heart disease. Infectious diseases are things spread my bacteria or organisms.