Healthy ecosystems clean our water, purify our air, maintain our soil, regulate the climate, recycle nutrients and provide us with food. They provide raw materials and resources for medicines and other purposes
It was believed that even numbers are unlucky.
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Explanation: </u>
It is an old superstitious belief that even numbers are unlucky. In respect of the same superstition, a gun salute is set off odd numbers.
It is a gesture of bestowing great honor on a significant individual. Since long back in history, symbolism has been denoted to every numerical known. Hence, firing a gun for a certain of an odd number of times symbolizes varied kinds of respect in every country.
Some countries fire shots 21 times because number seven is sacred and lucky. Hence 
Scipio Africanus defeated Carthage at the Battle of Zama :)
Answer:
Not at all likely, as his parents have strict rules against smoking
Explanation:
Marcel is not likely at all to smoke because his parents have strict rules, often ask about his day at school and are always there providing guidance to him whenever he needs assistance witj school work.
The integration and closeness he share with his parents will most likely make him not to be influenced by anyone to smoke.