Pond water contains a variety of plant and animal life. While some are visible to the plain eye, others require a microscope to observe them. For example, there's bacteria, protozoa, hydras, algae, and arthropods. You will have the opportunity to see a number of microorganisms from both the plant and animal kingdom.
Your answer is B - The eruption is explosive.
The discover things from the past
<span>Synarthrosis: immovable joint in which two bones are connected rigidly by fibrous tissue
</span><span>Amphiarthrosis: slightly movable joint in which the surfaces of bones are connected by ligaments or cartilage
</span><span>Diarthrosis: a joint that can move freely in various planes
Hope this helps!!(If it doesn't I'm sorry!)</span>