Pure air is a mixture of several gases that are invisible and odorless. Consists of 78% nitrogen, 21% oxygen, and less than 1% of argon, carbon dioxide.
you can learn who's blood it is, you can also see the blood patterns and how the crime maybe happened.
Answer: Iron
Explanation: There are little minnerals that make it magnetic.
Stearic acid is <span>a solid saturated fatty acid obtained from animal or vegetable fats.</span>
Answer:
The higher up an object is the greater its gravitational potential energy. ... As most of this GPE gets changed into kinetic energy, the higher up the object starts from the faster it will be falling when it hits the ground. So a change in gravitational potential energy depends on the height an object moves through.
