The statement “All of the earth's life and weather exists
within the stratosphere” is false. The answer is letter B. The answer is the
troposphere. The first layer, troposphere, is where we are able to do most of
our activities. This is where we can see the formation of clouds, the
production of rain, hail, snow and other weather phenomenon. Also, this layer
is where the greatest amount of air pressure because most of the molecules of
air are in this area. Like us, air has also mass and the pressure is brought
down by the earth’s gravity causing an increase in weight exerted on you as you
descend lower into the atmosphere. So, as you enter into the other layers of
atmosphere above the troposphere, the air pressure starts to decrease. <span>Below the
atmosphere is the hydrosphere. This is where all liquid forms are located. And
since the seawater has a greater mass than air, it has the greatest
pressure. </span>
A plane figure with at least three straight sides and angles, and typically five or more.Polygon-
Consecutive vertices-The endpoints of one side of a polygon.
diagonal of a polygon
A polygon with all the angles equal and all the sides equal.
regular polygon
Any closed figure bounded by three or more segments that only intersect at their endpoints. The segments are called the sides, and the endpoints are called the vertices of the polygon.
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<span>The statement, a hard material
is easily scratched, is false, the answer is letter F. Harder materials have
strong bonding between their neighboring atoms and it takes a greater amount of
energy for them to break apart, even a scratch. The relative hardness of a
mineral can be tested by the Moh’s scale or the mineral hardness. The Moh’s
scale can be characterized by the ability of the mineral to resist scratch
resistance by scratching a harder or softer mineral. It has a scale of 1 to 10
where 1 being the softest and 10 being the hardest.</span>
4.9 eV is the correct answer
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