Which of the following was one of the first actions to negatively impact the environment? a)farming
b)hunting
c)fishing
d)gathering

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity

In the practice of science, this type of reasoning is used to develop explanations.

If an organ has six haploid chromosomes,how many chromosomes are present. 6 12