Answer:
"Growers using organic soils will never concern themselves with supplying oxygen to their plants; however, hydroponic growers like me must be well versed in the science of dissolved oxygen (from here on out called DO). While most crops seem to prefer about 9 PPM DO, some crops like lettuce have demonstrated little to no difference in fresh weight or dry weight when grown in DO levels ranging …"
Explanation:
Answer:
D. would be the best answer
Explanation:
Although they mainly found evidence through fossils, they also found this evidence with the occurrence of earthquakes and volcanic eruptions.
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Answer:4,500
Explanation:6mm times 750 equals 4,500
use of a microscope containing improved lenses that could magnify objects almost 300-fold, or 270x. Under these microscopes, Leeuwenhoek <span>found motile objects. </span>
Explanation: Succession is a series of progressive changes in the composition of an ecological community over time. In primary succession, newly exposed or newly formed rock is colonized by living things for the first time.
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