Answer:
4.) C
Explenation
im sure i was right i already answer this question
Answer:
We determined that if phosphorus is provided at the required level of 0.33%, the optimal ratio of calcium to phosphorus is 1.39:1 or 1.25:1 to maximise daily gain and gain-to-feed, respectively. To optimise bone ash, which is important for breeding sows, the ratio is 1.66:1,”
Explanation:
Nitrogen and Oxygen make up the greatest percentage of the atmosphere.
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