What 2 factors can block the much needed sunlight to the algae living on coral?

Which sentence best expresses the differing opinions of these two book reviews?

If vegetable oil is made out of veggies, then what is baby oil made out of?

Some technological solutions to problems like global warming meet the specific needs and situations of local communities. an example from india involves converting the solid waste from cattle into clean-burning fuel for cooking. this reduces the amount of greenhouse gases, specifically methane and carbon dioxide, released into the environment from wood fires. when evaluating the feasibility of implementing this solution, computer models are used to weigh costs against benefits. what factor is least likely to impact the decision on adopting this technology?