Answer:
C . Radio wave
Explanation:
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Only 5 percent of the grass would be passed on to the hawk
The questions from this lot which could be tested in a scientific manner would be "what causes some people to be color-blind"
and
"what are the best shoes to wear when exercising"
Both of these questions can be tested in a scientific way through an experiment.
Well, some theories are stupid and some are valid. First, scientists believe that we (humans) evolved from apes. I don't think that is valid, they have no proof. But I do believe that over time, animals have evolved from ancestors. Say birds didn't have wings, Over time God (or whatever you believe) gave them wings so it would help them. Some of those theories are that what influenced scientific debate.