Explain how electrons make up a large amount of an atoms volume, but not its mass

Classify each possible hypothesis about a medicinal aloe vera plant as falsifiable or non-falsifiable. aloe vera gel is the best natural skin moisturizer. aloe vera gel can heal wounds by boosting cell renewal. aloe vera juice tastes better than carrot juice. drinking aloe juice can reduce the risk of lung cancer.

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?

What was the first instrument to ever record an earthquake?