Question

Food can become poisonous if left.uncovered for long periods.how does this happen?

Answer 1

Answer:

Explanation:

Food doesn't really become poisonous, but if kept for a long period uncovered, dust particles and other microorganisms may contaminate it or the food may become stale which maybe bad for health.

Answer 2

Answer:

food can become poisonous if left un covered depends on the temperature of the are where it is kept .

certain bacteria can contaminate food if the food is kept in moist and too warm condition .

There are certain bacteria which can contaminate food if kept in too cold condition.