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1. Plants absorb carbon dioxide and release _ _ _ _ _ _ during photosynthesis (¥ú¦X§@¥Î). They take in _ _ _ _ _ _ and release carbon dioxide at night, when photosynthesis does not take place.

2. Water travels from soil to a plant's leaves _ _ _ _ _ _ _ its roots, stem and branches.

3. Sunlight turns the carbon dioxide and water a plant's leaves absorb into glucose (a type of _ _ _ _ _), which is its food.

Across

3. Photosynthesis is the most important biological process on earth. Neither plants nor animals can _ _ _ _ _ _ _ without it.

4. Chlorophyll (¸­ºñ¯À), a chemical in leaves, gives them its _ _ _ _ _ colour. It absorbs warmth and energy from sun rays.

(Answers on next text)

¡½Glossary

absorb (v) §l¦¬

stem (n) (´Óª«ªº)²ô

glucose (n) (´Óª«¡B¤×«ü¤ôªG¤¤ªº)¸²µå¿}