This is an Engineering question, and the answer is reasonably simple. The mechanical advantage is given by:
MA =
on a lever or ramp system.
MA =
MA = 6.67 (there are no units, as MA is a ratio)
Hello!
A substance that could be found in air, water or soil that is harmful to humans or animals is a Pollutant.
The other substances cannot be found in air, water or soil. Fossil fuels can only be found in soil, smog can only be found in the air, and carbon dioxide can be found in the water or air.
Pollutants are substances that have harmful effects and damage the environment. Some examples of pollutants are Carbon Monoxide (air), Lead (soil) and Insecticides (water).
Have a nice day!
Answer:
B, H, E, G, C, D, A, F
Explanation:
The ones closest to the bottom are the oldest
Answer:
B
Explanation:
The four factors that increase the rate of the reaction:
1.Concentration of the reactants
2.Size of the particles
3.Temperature
4.Catalyst
Answer:
Volume and density are inversely related
