That's a physical change. There are no chemicals reacting with each other, it's the simple presence of concentration of food colouring and oil in water that changes its appearance.
Your teacher may be looking for something more specific than this. But, now the idea of evolution is generally accepted and now with modern technology we can mostly prove his theory. (it isnt proven as it is a theory).
1000 words the average person speaks per minute
Answer:
b. All charitable organizations qualify for a charitable contribution deduction.
Explanation:
It is false that all charitable organizations qualify for a charitable contribution deduction. You may be able to deduct a charitable contribution as long as this was made to a charity that is qualified under section 170(c) of the Internal Revenue Code. Therefore, it is important that you check whether a charity belongs to this category before attempting to claim a tax deduction.
The one that usually responsible for protecting against noise is :
EPA
EPA protected all things from the source that probably caused health disturbance in an environment, which include sound pollution.
