I think your answer would be A.
It would be D I think again I think.
<span>This is a Type II error. In this case, a "false negative" has occurred. The null hypothesis has been shown to be accepted (or, no effect has been shown) when there should have been some statistically significant effect. This is likely an error in the creation of the experiment.</span>
Answer:
the chemical formula of copper tracksun nitrate cu(no3)2
I believe option A since the rest have majority relation with the environment and climate.