Answer:
Harmful substance are elements that are dangerous to human health. They are water, fruits, food and drugs that are unfit for human consumption. Examples of harmful substances are: Stale food; this is food that is spoil, food that has stayed old is not fit for the body because it is very harmful to the body
Explanation:
The answer is
the earth, rock forms, and strata
Since the 1990s , trade has grown very fast driven by a mix of technological change and policy reforms . With the exception of 2009 trade growth has still remained positive and much bigger than economic growth . This underlined clearly that trade is effective engine for growth.
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Answer:
i. 3/5
ii. 2/5
Explanation:
Solving the problem by any of the students A, B and C is an independent event as solution by one does not restrict the other one from solving
However, the problem will be solved if even one of them solves the question
Now Probability of not solving the question by A, B and C are
PA (not solving a problem) - 1-1/3 = 2/3
PB (not solving a problem) - 1-1/4 = 3/4
PC (not solving a problem) - 1-1/5 = 4/5
ii) Probability of not solving - 2/3*3/4*4/5 = 2 *1/5 = 2/5
i) Probability of solving - 1- Probability of not solving
= 1 - 2/5 = 3/5
I think watermark because it has to do with a body of water
