Question

Maximum solar energy is trapped by

• A. planting trees
• B. cultivating crops
• C. growing algae in tanks
• D. growing grasses.

Answer 1

The Correct Option is C

To determine which option traps the maximum solar energy, we need to look at the fundamental biological processes involved in energy capture from sunlight, which is known as photosynthesis.

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy, typically from the sun, into chemical energy stored in glucose. It is a critical biological process and forms the basis for life on earth, driving the energy flow within ecosystems.

Among the given options:

• Planting trees:

  Trees have a significant capacity to capture light energy; however, the efficiency of energy capture per unit area is lower compared to other organisms due to the structural complexity and greater energy devoted to maintaining their large biomass.

• Cultivating crops:

  Crops are efficient in capturing sunlight, especially monocultures designed for maximum light absorption. However, their efficiency still falls short compared to simpler organisms like algae which have higher photosynthetic efficiency.

• Growing algae in tanks:

  Algae, especially when grown in controlled tank environments, are among the most efficient organisms at trapping solar energy. They have simple structures and, thus, allocate more energy to photosynthesis relative to other organisms, making them highly effective in capturing sunlight per unit area.

• Growing grasses:

  Grasses also capture solar energy efficiently; however, like crops, their efficiency per unit area is not as high as that of algae.

Conclusion: The correct answer is growing algae in tanks. Algae have an inherently higher efficiency in converting solar energy due to their simpler and more direct photosynthetic apparatus.

Therefore, in terms of maximizing solar energy capture per unit area, algae outpace trees, crops, and grasses.