Which one of the following gases is dissolved under pressure in fizzy drinks?

Which one of the following pollutant gases is the main cause of acid rain?

Which gas is the main contributor to the problem of global warming?

Some advertising signs contain light which makes them more visible and attractive. Which of the following gases produces this light?

Which gas makes up 78% of air?

Which gas is needed to start and keep a fire going?

Which gas is very nonreactive, so people use it in sealed food packaging to stop food from spoiling?

Which gas in used in most fire extinguishers?

Which gas is used inside incandescent light bulbs and stops the white hot metal filament from reacting with oxygen and snapping.

Exhaled air contains all of the following except.

We get glucose that is used in respiration from which of the following food groups?

What gas is needed to complete the respiration word equation below?

Glucose + .....?..... --------> carbon dioxide + water (+energy)

Which of the following pollutants is a toxic, colourless, odorless gas that can cause death?

Which pollutant gas is released from fields used to grow rice, marshlands and grazing cattle as a waste product?