Tiger salamanders live in ponds high on the western slopes of the Rocky Mountains in CO, their numbers had decreased by 65 percent over the years. Harte was looking for the answer as to why this was happening, so he started a scientific investigation, key to this was that he did not form a conclusion, but a hypothesis.
Harte questioned why the number of tiger salamanders was dropping, talked to other scientists and answered many of his questions through observations.
In the natural world, the moisture that falls as rain and snow is very slightly acidic. In the Rocky Mountains the moisture is high in sulfuric acid from power plants, acid precipitation released into mountain ponds, when snow melts it goes into lakes. Harte formed two hypothesis: First, that acids were formed in the upper atmosphere by pollutants, were falling onto the mountains in the winter snows; second, melting snow was making the ponds acidic and harming the salamander embryos.
Harte predicted: he would find acid in the ponds after snow melted, he also predicted that there would be enough acid in the ponds to harm salamander embryos. He found that ponds became more acidic as the snow melted, and salamander lay eggs in the pond after the snow melt.
It was a cynical deal indeed. The deal was to remove soldiers from the south in exchange for getting support for presidency. Which basically meant that the President allowed for racism and oppression to flourish for a long time in exchange for getting political power.
Answer:
Idk
Explanation:
I just need to answer something so I can ask something. Sorry Hope you get an answer soon though
Two of the major results of the United States's intervening in the revolution in Cuba was that the Spanish were kept from permanently occupying territory very close to the United States, and that the US was able to showcase its power on the world stage, which made it more intimidating to European powers.
Answer:
hope this answer will you.