What is the purpose of the test tube rack cover?
I

Answers

Answer 1

Answer:

It is used to change light levels for test tubes to see how the substance or organizim reacts, and to stop things from messing with your experiment. (And to keep dust off of your test tube rack.)

Answer 2
Answer:

It’s to simulate dark conditions.

Related Questions

Select the answer that best completes the sentence.
• Juan Carlos y Felipe desean
O patinar
O esquiar
O comer mole

Answers

Answer:

patinar

Explanation:

Juan Carlos and Felipe want to skate

Please can someone help me I fr need it. The question is, It was a very busy afternoon in your classroom, and things got a little out of order. Write eight sentences describing where things are to help your teacher find everything.

Answers

Answer: la bandera esta abajo de el escritorio, los papeles estan abajo de la silla, la niña esta detras de los libros, el libro esta abajo de el escritorio, la silla esta en frente de la puerta, los zapatos estan en el piso, el escritorio esta en seguida de la puerta, el mundo esta en seguida del escritorio.

Explanation:

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