"Biorock technology" is talked about in which one of the following situations ?

The correct answer is Option 1.

Key Points

• Biorock technology is an innovative process originally invented in 1976 by the late architect  to produce natural building materials in the sea. 
• Biorock materials are the only marine construction material that grow, get stronger with age, and are self-repairing.
• Biorock technology is a revolutionary way to remediate contaminated soil.
• Instead of removing contaminants by boring into the soil, biorock technology generates an energetic and rotary force within the soil matrix that effectively removes contaminants from the soil. 
• Biorock technology is the only sustainable method of protecting coral reefs from mass extinction from global warming. Hence Option 1 is correct.
  • Biorock technology greatly accelerates coral settlement, growth, healing, survival, and resistance to environmental stresses such as high temperature, sediment, and pollution. 
• Long-term benefits of biorock technology include:
  • Controlled disintegration of contaminant, often delivered by energy-producing biorocks, including uranium, radium and lead, which is much more efficient than geological disposal.
  • Withdrawal of contaminants and organic matter from the soil by rotational force in addition to the compression of heavy minerals by mechanical processes.
  • Removal of petroleum-based compounds from the soil, including oil and gas, by increasing the hydration level of oil.
  • Removal of solids from water, including solids that were not dissolved, such as heavy metals, petroleum hydrocarbons, and heavy water.