Answer:
D. ususally very abundant in an ecosystem
Explanation:
Most commercial phosphorus is produced by mining and heating calcium phosphate. Phosphorus is the eleventh most abundant element in the Earth's crust
Uranus and Jupiter both have rings, both have moons, but they are mostly gas planets, and both have some methane. I think id.k if that helped
Answer:
life will not possible on Earth I think so
Bulb is the answer because they are very short underground stem encased in thickened fleshy bulb scale.This scale help to store food
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Answer: D
Explanation:
Because the heavy plow and its traction team was expensive tool and individual peasant farmers were not able to own it, it brought collective ownership and patterns of communal agriculture and communal animal husbandry.
The heavy plough required more energy to pull this resulted several families coming together to pool their oxen to form a team large and strong enough to pull the heavy plow. The resulting “ox-gangs” became an important social group.
