I think it is erosion (2) because erosion removes soil, rock, and dissolved material.
<span>There are no choices given, but the event was most likely a physical one that would have barred the squirrels from seeing each other. Squirrels are a social creature, and the event that would have separated the populace could have been anything from a large fire to an earthquake that separated the squirrels from each other.</span>
<span>it has a specific activation site for enzyme attachment</span>
A virus can be inside a body without showing up
29.7%, which can be rounded to 30%