Lumbar nerves transmit signals that allow us to walk. They are a pivotal part of the human body, and without them we would be immobile. Hope this helps.
We've never discovered any way for wavelengths of light to
appear to get longer after they leave the source, except for
the Doppler effect ... when the observer and the source of
the light are moving apart.
Since we don't know any other way for it to happen, whenever
we see a star or a galaxy whose light is red-shifted, we conclude
that it is moving away from Earth.
If you think about this for a few seconds, there are two things
about it that should blow your mind:
#1). "Red-shifted" means that the wavelengths of the light we see
are longer than the wavelengths of the light that left the star.
How do we know what the wavelength was when it left the star ?
#2). Our whole picture of the "expanding universe" ... which is a
big part of the foundation that supports the whole picture of the
"big bang" ... rests on the red-shift of light from distant galaxies,
and our conclusion that they are all moving away from us.
If we ever discover a DIFFERENT way that light can become
red-shifted, that may be IT for the expanding universe and the
big bang, both. They may both be out the window.
Because the liver helps to regulate blood clotting, people<span> with liver disease (for example, hepatitis or cirrhosis) also have a tendency to </span>bleed<span> easily. Most commonly, easy or excessive bruising occurs because the skin and blood vessels are fragile.
Hope This Helped! :3</span>
Answer:
C. the tilt of Earth’s axis as it orbits around the Sun
Explanation:
The hemisphere which is pointed towards the Sun, it is summer in that hemisphere.
The hemisphere which is pointed away from the Sun, it is winter in that hemisphere.
The tilt of the Earth at 23.4° is responsible for the length of a day in the hemisphere.
In the corresponding hemisphere the day is longer in the summer season and the day is longer in the winter season.
Hence, the seasons are caused due to the fact that tilt of Earth’s axis as it orbits around the Sun.
<span>Avg Speed = Total Distance/Total time taken
avg speed= 100 m / 9.69sec
= 10.3 m/sec.</span>