A. It decreases gradually. B. It increases gradually. C. It falls sharply. D. It remains the same.

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?

Need people build a dam to create a reservoir that supplies water a nearby city needs. describe two ways this action will likely affect the water cycle in the local environment. (5 points) worth 20 points

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is