Does anyone have the chemistry paper 1 higher 2019 mark scheme thank you

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

Which answer tells the reason the earth’s climate is getting warmer? too many animals are becoming extinct. large glaciers are melting in antarctica. the earth is moving closer to the sun. driving cars gives off gases that trap heat in the atmosphere.

The primary products of complete combustion of fossil fuels are a. carbon dioxide and water b. methane and water c. carbon monoxide and water d. carbon dioxide and carbon monoxide