4. Refer to the following information. Some water, a small amount of soil, a few aquatic plants, and a fish were placed in a large bottle. The bottle was sealed to prevent the exchange of gases and other materials between its contents and the outside. The bottle was then placed in a window to receive light during the day. After a week, both the plants and the fish appeared healthy. How is the oxygen replenished in the bottle

The graph represents the gravitational attraction between two equal masses vs. their distance apart, which statement best describes the information presented by the graph? a) distance is only a factor in space, not on earth. b) gravitational attraction is directly proportional to distance. c) gravitational attraction is inversely proportional to distance. d) gravitational attraction is not related to the distance between objects.

Can someone me with this and tell me what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

After fertilization, which type of cellular division is responsible for the growth and development of a complex, multicellular organism?