Which group of algae is responsible for formation of kelp beds along the north american coasts?
brown algae
green algae
red algae

The answer is Brown algae.

Explanation:

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< Sarah >

1)

i))the process of preparing food by green plants in the presence of sunlight is called photosynthesis.

ii) leaf is the site for photosynthesis.

iii) it takes place as,

6h2o+6co2=c6h12o6+602