How are refraction and diffraction similar? how are they different? check all that apply

Explanation:

they are diffrent cause refraction is solid and diffrection is liquid

with such great emphasis put on the act and sat exams—the studying, the review sessions, taking the test, retaking the test, scholarships dependent on scores, etc.—many think the scores are the be all end all of college applications. if you have a high score, you can get into any college you want. if you have a low score, you’re doomed.