Answer:
Lake A: pH = 4.5; Lake B: pH = 7.5
Explanation:
I think that one because if you look on the acid vs base chart acid is from 0-6 and bases are from 8-14 and acids are less toxic, so you would infer that lake A has acid and lake B has bases.
i would have picked the ones closest to 7 ,which is neutral, but I'm not sure that a base can be lower then 7 so I didn't pick answer C
The teacher should clean the wound
Explanation:
the cut could've gotten something in it
Classifying things by observation can best be done by using a : Taxon
Taxon divided organisms into different groups based on their unique similarities, which is the best way to classify things if you're doing it by observation.
Answer:
The cosmic microwave background radiation.
This is completely consistent with a fireball event in which the radiation field was in thermal equilibrium, and is perhaps the most convincing evidence for the Big Bang.
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Veins don’t always conduct oxygen poor blood. The pulmonary vein brings reoxygenated blood from the lungs into the heart