The correct answer is a - silicon dioxide.
Diatoms are single celled algae. They have a silica - based cell wall called a frustule, which gives each diatom a particular shape.
Diatoms exist as separate single cells although some may be found in groups or colonies. The ones found in colonies create very pretty forms: leaf shaped, oval , star and even like a period.
Outer shells of diatoms are quite valuable. They are used in industry in the manufacture of toothpaste to give it grit.
Tiger, deer, elephant, peacock, snakes
Answer:
gasoline
Explanation:
hope that is help you haha
Answer:
The answer is C.
Explanation:
Decomposers feed on dead organisms like plants and animals.