General Westmoreland was the chief commanding officer during the Vietnam War. After his tenure Creighton Abrams took over.
The energy<span> from </span>sunlight is stored<span> in the chemical bonds of </span>molecules<span>. ..... </span>during<span> day, CO2 slowly used to make glucose while stomata are closed ... purpose is to produce ATP(</span>energy stored<span> in chemical </span>bonds of sugar<span>) and breakdown.</span>
Answer: More than 99 percent of all organisms that have ever lived on Earth are extinct. As new species evolve to fit ever changing ecological niches, older species fade away. But the rate of extinction is far from constant. At least a handful of times in the last 500 million years, 75 to more than 90 percent of all species on Earth have disappeared in a geological blink of an eye in catastrophes we call mass extinctions.
Though mass extinctions are deadly events, they open up the planet for new forms of life to emerge. The most studied mass extinction, which marked the boundary between the Cretaceous and Paleogene periods about 66 million years ago, killed off the nonavian dinosaurs and made room for mammals and birds to rapidly diversify
Answer:
Since variations in air pressure drive the winds on Earth, isobars also give meteorologists an easy way to assess wind direction and speed. Closely spaced isobars indicate large pressure changes over a small area, causing wind speeds to increase.
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