Answer & Explanation:
Chemical properties are properties that can be measured or observed only when matter undergoes a change to become an entirely different kind of matter. They include reactivity, flammability, and the ability to rust. Reactivity is the ability of matter to react chemically with other substances.
i look it up ok
They are most mainly consists of "Keratin"
So, option B is your answer.
Hope this helps!
Answer:
c
Explanation:
A, B, and D, are entities that are designed to protect the environment from pollution
C, on the other hand is only about noise control
Answer:
Regular physical activity helps improve your overall health, fitness, and quality of life. It also helps reduce your risk of chronic conditions like type 2 diabetes, heart disease, many types of cancer, depression and anxiety, and dementia.
Explanation:
