Answer: "<span>barometric pressure" .
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If the inner lining of the air sacs neither thin nor highly vascularized, then it can be inferred that AIR SACS ARE CANNOT BE THE SITES OF GASEOUS EXCHANGE BETWEEN AIR AND BLOOD. Air sacs are generally lined with mucus and surrounded with blood capillaries.
In case of birds, air sacs play an important role in respiratory system.
<span>Tides and currents carry nutrients, moderate temperatures, and influence conditions in numerous ecosystems. The relationship between society and tides and currents is obvious as coastal cities built to withstand prescribed levels of tidal surge are now being impacted by record breaking tidal surges, and the building of solid coastal structures do not allow waves to dissipate energy on land but deflect their energy to other coastal areas along the shore.
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A balance that performs in an enclosed compartment with no air currents to disturb is called an analytical balance.
Analytical balances are instruments used for precise and determination of mass of matter. They are accurate and very precise instruments. They require a draft-free location on a solid bench that is free of vibrations.
Analytical balances of today are digital and have built in calibration weights to maintain accuracy. Older versions usually require to be manually calibrated using specific standard weights.
