the hawk is facing or soaring throught the sky. the wind is pushing it and so the hawk just soars. than it may have to keep going so it flaps its wings......You asked a great question and i am getting this answer out of a text book so this is a true answer.
LOVE ONE ANOTHER AS ONE WOULD LOVE U
They are probably using updrafts caused by convection currents in the air. The hot and cold air are swapping places, and the warm air moves upward. Birds know to use this for a free elevator ride.
Explain how a hawk or eagle could use conviction currents to soar upward without flapping its wings
A eagle's wings are very long so it can stay up in the air for a long time.
The bird is rising on warm air (thermal lift) that rise from the ground. By circling, the bird keeps within the one thermal, and will climb without having to flap their wings.
Convection current helps it
Broadly: A wind type called a thermal
an updraft caused by winds as they srtike such obstacles as mountains or cliffs and are deflected upward; used by soaring birds to gain altitude without flapping
the hawk is facing or soaring throught the sky. the wind is pushing it and so the hawk just soars. than it may have to keep going so it flaps its wings......You asked a great question and i am getting this answer out of a text book so this is a true answer. LOVE ONE ANOTHER AS ONE WOULD LOVE U
organisms
A convection current is a mass of warm air moving upwards because it is less dense than the air around it. These currents are usually called "Thermals" and care capped at their top by a cumulus cloud. If a bird can find the rising column of air that is a thermal and circle round in it, the bird is carried aloft with the air, without the need to flap its wings.
Ockham's Razor.
yes, basically they stick downward but sometimes they stick upward.
Air in a tornado moves upward rapidly, sometimes taking objects with it.
supine position , sometimes called the recumbent position, is on the back, face upward.
enables the fish to maintain its depth without floating upward or sinking.
Hoses cause a rope wave when you grasp their ends in each hand, and Whip them downward and upward repetitively.
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Propellers are either "Left Hand" or "Right Hand". When the propeller is viewed from the blade edge or its side, the blade is angled upward to the left (Left Hand) or upward to the right (Right Hand). See illustration. enlarge Regards, Mike Leary misticmike@googlemail.com