Answer:
Existence itself is not homogeneous. It is heterogeneous. That means there are various kinds and degrees of purity.
Answer:
Why do we have seasons?
The Earth is tilted 23.5 degrees on its axis, which affects the distribution of the sun’s energy across the surface of the planet. As the Earth orbits the sun every 365 ¼ days, the axis is always pointing in the same direction into space, with the North Pole toward Polaris, the North Star. Around June 22, the northern hemisphere is angled towards the sun, and receives the most direct radiation and the most energy. This is the start of astronomical summer in the northern hemisphere and winter in the southern hemisphere.
I hope this helps...
Explanation:
Natural bridge<span>, </span><span>also called </span>natural arch<span>, naturally created </span>arch formation resembling a bridge. <span>Most </span>natural bridges<span> are </span>erosion<span> features that occur in massive, horizontally bedded sandstone or </span><span>limestone</span>M<span>ay be produced by entrenched rivers eroding through </span>meander<span> necks to form cutoffs. Still others are produced by exfoliation and may be enlarged by wind erosion. </span>
Food chains?????? I guess
Ozone molecules.
Ozone is a gas that is naturally present in our atmosphere, mostly in a region of the stratosphere, also known as the ozone layer. It's between about 10 km and 50 km above the surface of the earth and <span>extends
over the entire globe with some variation.
</span>The ozone in the s<span>tratosphere is considered good because
it absorbs ultraviolet- B (UV-B) radiation from the Sun . If not absorbed,
radiation would reach Earth’s surface in higher amounts that would be more harmful.</span>
