Answer:
I think its D. Artificial Selection
Explanation:
Sorry if this didn't helped you.
The Moon's mass is lower than that of Earth, thus it's gravity is less dense than Earth's gravity.
Since the strength and gradient of gravity is both mass and density it would be reasonable to think about mads
A biome is a group of ecosystems which shares the same characteristics. The world is split up into several biomes such as freshwater, marine, desert, forest, grassland, and tundra.
The grassland biomes are the regions which are dominated by grasses, often 3 to 6 feet tall at maturity. They may have an open shrub layer and the climate is temperate or tropical.
