<span>Burning fuel in factories releases acid pollutants. When they mix with moisture, the pollutants fall to Earth in the form of acid rain.</span>
Answer: 1) 9 2) iron
Explanation:
1) From research, 9 amino acids can not be made by an healthy adult, are arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan and valine
2) Iron plays a vital role in the build up of hemoglobin in the body. Transferrin protien binds to iron to transport it throughout the body, helping to make the red blood cell. To grow or raising the hemoglobin level is by eating or taking food that contains enough iron
Answer:
Answer is D. Opiate for the masses.
Explanation:
The political circuit , that is , the politicians have developed methods of distracting people from the activities of the government. One of this things is sport.
Note that opiate means something that calms or soothes someone. This means that, sport has been chosen to calm people down, because it will temporarily suppress the underlying pain.
Therefore, sport will prevent people from rising up or fighting their leaders.
I believe the answer is: Predict the outcomes of experiments before they are told the actual results.
By making them predicting the outcome of the experiment, dr. donelian would expose them with the fact that their prediction would often be wrong. After experiencing this, the students would no longer see the experiment as 'documenting the obvious'
Answer: C. a substance changes state from solid to liquid
Explanation:
A physical change is one that occurs when the substance of subject changes its form as a result of a reaction. The most noticeable indicator of this is a change in the state of matter such as a change from liquid to solid like the above.
The other options show a chemical change as the form was not changed but its chemical properties such as color was changed or it lost some atoms which became air.