Find out the main elements that make up the following materials / substances from the labels on the container of the substance and / or by researching the internet. someone please help this is due today

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Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole

Indicate whether the specified alkyl halides will form primarily substitution products, only elimination products, both substitution and elimination products, or no products when they react with sodium methoxide. 1-bromobutane 1-bromo-2-methylpropane 2-bromobutane 2-bromo-2-methylpropane

Is 9 correct? and can someone me with 10? it’s due tomorrow, you