Answer:
<h2>Hue Cancellation is an experimental technique where a person cancels out any perception of a particular color in a test light by adding light of another color.</h2>
The answer is antibiotics.
The word that completes the sentence is "upheld" meaning to support or to confirm.
On the off chance that a student will be made to state a promise, it can be untrustworthy to make them say 'under God' on this premise. So - the fundamental reason that the vow of devotion is said of schools is to impart a feeling of patriotism among understudies.
Answer:
D. Offensive and unwanted thoughts that persistently preoccupy a person.
