Answer:
c. Independent = Fertilizer amount, Dependent = Yield
Explanation:
In an experiment, the independent variable is changed to observe its effect on the dependent variable. In the given experiment, the potted tomato plants were treated with different amounts of fertilizer to observe the effect of the amount of fertilizer on the plant yield. Therefore, the amount of fertilizer is an independent variable here. Since the effect of change in the amount of fertilizer was observed in terms of plant yield, the "plant yield" is a dependent variable in the experiment.
There are no true tropic climates
False, I'd say. Mammals usually adapt based on environment. Now, I know predators are "apart" of the environment, but I don't think that'd be it. I'd bet more money on saying mammals evolve based on environment adaptation. Sorry if I didn't answer your question or if I didn't get my point across well.
Answer:
The pitch of a sound is how high or low a sound is when we hear it, whereas the intensity of a sound is the energy/vibrancy of the sound over an area and depends on the frequency of the sound as well.
