The answer is A. Sorry if i'm wrong.
Answer:
he body's first line of defense against pathogens uses mostly physical and chemical barriers such as sweat, skin, tears, mucus, stomach acid, and so on.
Explanation:
One part is the effect of the gravitational forces between and among the planets
Answer:
Three
Explanation:
Three
Three extremely large explosive eruptions have occurred at Yellowstone in the past 2.1 million years with a recurrence interval of about 600,000 to 800,000 years. More frequent eruptions of basalt and rhyolite lava flows have occurred before and after the large caldera-forming events.