Help please this is Health class
I need help for the last one

Explain what causes the skin to burn in the sun? explain why people should avoid the sun if taking a photosensitive medication?

Achildren’s pain relief elixir contains 80. mg acetaminophen per 0.50 teaspoon. the dosage recommended for a child who weighs between 24 and 35 lb is 1.5 teaspoons. what is the range of acetaminophen doses, expressed in mg acetaminophen/kg body weight, for children who weigh between 24 and 35 lb

Cardiac output is affected by heart rate exercise stroke volume all of the above