Please answer the followingReferred book- science technology and society

21. The following statements are true about the Anderson OTEC cycle, except: a. Ammonia is used to power the turbine. b. It is also referred as the Closed-Cycle. c. The warm seawater is placed in low-pressure container. d. A 2nd-heat generator is used in the cycle. 22. In computing the Carbon footprint, the following data are needed: a. public transportation usage b. energy used at home c. food consumption d. all of the above 23. These are referred as High Global Warming Potential (GWP) Gases: a. Nitrous Oxide c. Methane b. Fluorinated Gases d. Carbon monoxide 24. Emissions form livestock's, agricultural practices, and the decay of organic waste produces: a. Methane c. Nitrous oxide b. Carbon dioxide d. Water vapor 25. The following are advantages of using OTEC, except: a. It produces no chemical pollution. b. It can provide potable water from ocean water. c. Construction of the power plants reinforces the coral reefs and marine ecosystem. d. It produces clean, green renewable energy