Question

Algae can grow

• A. On the surface of water
• B. Inside the water
• C. On the tree
• D. None of the above

Answer 1

The correct option is A On the surface of water

Both macroalgae and microalgae need sunlight, water,chlorophyll, carbon dioxide, the correct environment and nutrients to grow and make their own energy. Macroalgae have air-bladders or flexible stipes which help the algae to rise to the surface of the water and catch the sunlight.

So, the correct answer is 'A'.