<span>I think the answer is: Viruses are nonliving infectious agents. </span>
That would be mass.
Hope it helps!
The student is trying to see which substance (disinfectant 1, 2, 3, or the distilled water) can disinfect the most.
Answer:
1. Each Giraffe's neck length is different
2. The tall neck Giraffes reproduced and their off spring inherited their genes
3. A drought occurred.
Explanation:
