Question

Q-1 which physical phenomenon causes the spherical shape of raindrop._________
Q-2 In a chemical equation, what does a downward pointing Arrow signify.______
Q-3 What is an auxanometer or Arc indicator used to measure._______
Q-4 What does an Elisa Reader machine do.________
Q-5 To change from Centigrade to Fahrenheit, you must multiply by _________, divide by ________ and add _________.
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Answer 1

Answer:

1 surface tension

2 precipitate is indicated by this arrow

3 answer is image

4 answer is image