There is evidence that the composition of the earth's atmosphere is still changing. one possible reason is that many power stations generate electricity by burning fossil fuels such as coal, oil or natural gas. sulphur dioxide, SO2, is produced when coal burns in air. what environmental problem does sulphur dioxide cause?

Temperatures in ponds and lakes vary by season. select the best answer from the choices provided t f

The image shows the evolution of a species of fish. a few fish from a population developed different social behaviors and evolved into different species. two fish according to the image, the fish underwent . the new species of fish had mating seasons that were different from that of the original fish. because of the differences in mating seasons, the fish underwent reproductive isolation. this mode of isolation would be .

Differentiate renewable and nonrenewable resources