_______________ have definite shapes and definite volumes.

_____________ has mass and occupy space.

_______________ have definite volumes but no definite shapes.

___________can flow but cannot be compressed.

______________ has no definite shape and no definite volume.

_____________ is a gas that plants need to make food during photosynthesis.

During the day time plants inhale _____________________ and exhales ______________________.

___________________ is the process in which plants prepare their own food.

___________________ gas supports burning.

living things need oxygen for a process called ________________.

___________________ gas does not support burning.

Air craft tyres are filled with dry ____________ gas,

________________ is a mixture of gases.

Presence of too much carbon dioxide gas in the air may lead to _____________________.