I think the correct answer from the choices listed above is option D. It is the balance that is directly used to make measurements. Fume hood is used as a place where preparation of solutions that are harmful is done. Eye wash station is used when a chemical is being spilled to the eye. The bunsen burner is used to heat substances.
One-fifth of earth's total freshwater supply is in groundwater
Answer:
100%
Explanation:
the only possibilities from HH and hh are: Hh Hh Hh Hh
Answer: Multicellular organisms are larger, more efficient, and have a longer lifespan than unicellular organisms. ... The cells are specialized and must depend on each other for survival of the organism.
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Explanation:
Answer:
The answer is 22.5ml
Explanation:
The chamber volume is 500 ml.
So amount of oxygen in chamber at the beginning
=
=105 ml
After the end of hour ; let x ml of oxygen was consumed.
Amount of oxygen at the end of 1 hour =18 %
So,
=0.18
Solving we get ;
105-x= 90-0.18 x
0.72 x =15
x=20.83 ml
So amount of oxygen consumed in the hour =20.83 ml
So answer is A.