Amutation is a permant change in a gene. what is a gene?

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

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?