Answer:
Gray water is somewhat (mostly) clean waste water. It can be from baths, sinks, kitchen appliances, and more.
<span>Science of Biology is the study of using evidence
to learn about the natural world. Scientists use this body of knowledge to
gather data, both quantitative (numbers) and qualitative (descriptive), and
propose scientific explanations based from scientific experiments. The goal of
science is to basically deal with the natural world; collect and organize the
necessary information; and eventually propose explanations that can be tested. </span>
<span>
Science therefore is an ongoing process and will
continue and is a bridge to satisfy our human thirst for knowledge. </span>
The answer is A. Eyeglasses, because eyeglasses are used in modern telescopes, and that's what helps us see the moon
