Engineering Online MCQ Number 0876 – online study, assignment and exam

Multiple choice question for engineering Set 1 1. The Macronutrients concentration needed is __________ a) Greater than 10-2 M b) Less than 10-2 M c) Greater than 10 -4 M d) Less than 10-4 M [learn_more caption=”View Answer”]Answer: c [Reason:] Macronutrients are needed in concentrations larger than 10-4 M. Carbon, nitrogen, oxygen, hydrogen, sulfur, phosphorus,…

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