Environmental Science
Scientists are able to determine the air temperature in the thermosphere by:

Direct measurements in manned, high-altitude balloons
Observing changes in satellite orbits
Using radiosondes
Using temperature probes in orbiting satellites

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Environmental Science
Which among the following is related to the word Mesoderm ?

No membrane-bound organelles, no peptidoglycan in cell walls, introns
Binomial system of classification
Forms blood and bone (leads to complex internal organs)
Anatomically advanced animals having all three germ layers

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