Answer:
D the train
Explanation:
The train is safe very fast and was the first built
Plants absorb me from the soil through assimilation, I am eaten by animals the animals and plants die and decompose where I am released back into the soil, weathering and erosion cause me to release out of rocks, I then find my way into the ocean being carried by water, I then return to the soil through the water.
I think teachers in the master gardener program are pretty helpful for the environment
<span>He could design and perform a new controlled experiment to test the hypothesis.</span>