Answer:
Physical properties are used to observe and describe matter. Physical properties can be observed or measured without changing the composition of matter. These are properties such as <em>mass, weight, volume, and density.</em>
Carbon Dioxide is used in celular respiration. All other choices are waste products
Answer:
Air pollution effect the most
MgF₂ ( <span>Magnesium fluoride )
hope this helps!</span>
The answers is 67 don’t ask me I don’t know but trying to get free points
