B. Soil Contamination
All the other answers are talking about clean and pure things while this answer is the only negative one. So B is your answer.
You are correct the answer is c
Answer:
D
Explanation:
Addition of hydroxide ions will decrease its acidity and make it more basic.
Throwing a ball is an example of kinetic energy. I do not have any proof or any reasons, but for now I just know that it's kinetic energy. You can also look it up and you'll see the answer automatically. Hope this helps :) If you want any proof, please feel free to ask me thru contact :)
