Which devices, used together, can measure accerleration?
a. meterstick, stopwatch, and compass.
b. stopwatch and meterstick.
c. meterstick and compass.
d. compass and stopwatch

According to the big bang theory, after the "bang," the universe remained dark until about  300,000 yearsone billion yearsthree minutesthree billion years  later, when neutral atoms began to form.

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?

Are the earth's ocean floor and continents the same age geologically? why or why not?