Which statement best describes the progress of science?
a. scientific ideas are changed when better ones are found.
b. people rarely think old scientific ideas are correct.
c. once a scientist has an idea, it can never be changed.
d. scientific ideas are hardly ever replaced with new ones.

In the african savanna,more wildebeests are born than the environment can support. which is most likely to happen over a period of years as a result

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?

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays