Answer:
possibly depending on what you want
Explanation:
The answer would be C. Energy is used through the food chain so energy always decreases. Population size would commonly decrease according to the pyramid of food chain but since there's no answer for that, C would be the most suitable
The answers is D because it needs something to survive
Astronomy is the scientific study of celestial objects. (Such as stars, planets, comets, and galaxies)
The biosphere. This is the layer that contains all life on the planet.
