Question

What is the most likely meaning of concentration in paragraph 7?thinking thinking about about one one thing thing in in a a focused focused waywayamount amount of of a a substance substance found found in in waterwaterarea area where where something something comes comes fromfromchance chance to to be be foundfound

Answer 1

amount of a substance found in water.

Step-by-step explanation:

Answer 2

amount of a substance found in water.