Question

please answer qn no.8 and 9​

Answer 1

Answer:

9.

Yes plants can use artificial source of light as well to perform the process of photosynthesis. Well there is no denying fact that sunlight is the ultimate source of energy but its never stated that plants won't perform photosynthesis in the absence of sunlight. Artificial lights can also be proved to prepare food.

Explanation:

8.

Plants in deep ocean receive oxygen from water and get access to sunlight.

Due to presence of chlorophyll, pigments of red and brown help in masking predominant green pigments of photosynthesis.

As a result, they easily prepare their food and survive for long. After their death, they fall down.

Answer 2

Answer:

brown and red algae is not like green algae or green plants

they don't able to synthesise their own food from sun light

no every light is not equal to light