How are pressure measurements related to weather prediction?
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a. low, but increasing, pressure indicates stormy weather.
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b. stable pressure indicates stormy weather.
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c. decreasing pressure indicates stormy weather.
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d. high pressure indicates stormy weather.

the backbone of the dna and rna compound is sugar phosphate.

producers within ecosystems are essential as they are at the base of the food chain. plants are examples of producers. they use the process of photosynthesis to capture light energy and use it to convert simple inorganic substances (carbon dioxide and water) into organic substances (glucose).