Identify the silent letter(s) in each of these words. comb pneumatic gnaw plumber knight phthisic ptarmigan knell psychology impulse pls ! i need this now

Explanation:

It is called silent letters for written letters, but not pronounced in English. It is important for you to know some silent letters to correctly pronounce the English words.

In the English language, the following letters can be silent in the pronunciation of some words: a, b, c, d, e, g, h, k, l, n, p, s, t, u, w. In some cases, the pronunciation is influenced by both the neighboring letters and the position of the letter in the word.

the choice that is not a technique that you should use to come up with ideas for the topic of a research project is, writing about academic subjects that are not interesting to you. this does not belong to the techniques to come up with ideas because having no interest in a certain topic will lose your drive to come up with better ideas. it gives no room for improvement and acquiring of new ideas and information. 

explanation:

- "the answers are a and b.  

when cullen speaks of planting while others reap, and standing "abject and mute," he is speaking about the racial injustices present in american society. as these injustices have changed over time, the american identity  has also shifted. those changes are, in turn, reflected in american literature."