The speed of nitrogen molecules in the atmosphere (at 20ºc) follows a normal distribution with a mean speed of 500 meters/second and a standard deviation of 50 meters/second. this information best supports which conclusion?

a. 84% of the molecules have speeds between 450 meters/second and 550 meters/second.
b. 68% of the molecules have speeds between 450 meters/second and 550 meters/second.
c. 50% of the molecules have speeds between 450 meters/second and 550 meters/second.
d. 34% of the molecules have speeds greater than 550 meters/second.

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?

How does human environment effect the biosphere

Sexual reproduction in the parent cell will result in offspring with a) identical genetic information. b) half the genetic information. c) double the genetic information. d) four times the genetic information.