The Sidereal Day is 4 minutes shorter than the Mean Solar Day, because the rotation of the Earth on its axis, and the orbiting of the Earth around the Sun, are both counterclockwise, as viewed from above (or north of) the Ecliptic Plane. See planetary retrograde motion for an example of the opposite situation.
The reason that the Solar Day varies around the Mean Solar Day is that the Earth moves at different speeds through its orbit around the Sun. This is in keeping with Kepler's Second Law of Planetary Motion.
Please note that the Mean Solar Day changes over a long period of time, due to the slowing of the rotation of the Earth due to tidal forces exerted on the Earth primarily by the Moon. For example, the Mean Solar Day was about 23 hours about 250 million years ago.
Answer:
D, what do people need to be happy
Explanation:
first we need to understand what positive psychology means. Positive Psychology according to Wikipedia can be defined as <em>the scientific study of the "good life", or the positive aspects of the human experience that make life worth living. </em>
Therefore the correct option is D
The percentage of these products which are recycled include the following:
- 50% Aluminum
- 25 % steel
- 60% copper.
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What is Recycling?</h3>
This is defined as the process in which different types of waste are converted into usable materials through different processes and techniques.
Recycling is important as it helps to reduce incidences of pollution and wastage thereby improving the quality of living for humans and other organisms present on Earth. The percentage of aluminum, steel and copper products being recycled can be seen above.
Read more about Recycling here brainly.com/question/2055088
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Similarities
Both plant and animal cells have eukaryotic origins
Both have common organelles like the nucleus, mitochondria and ribosomes
Both are surrounded by a cell membrane
differences
plant cells have a regular defined shape while animal cells have an irregular shape
plant cells have a cell wall while animal cells lack a cell wall
plant cells have a chloroplast for photosynthesis while animal cells do not have a chloroplast
Answer:
Explanation:
1. Progeny observed in the experiment is calculated by adding all the progeny numbers observed in the :
TIME TO FRUIT TENDRIL SIZE FRUIT COLOR NUMBER
Normal normal dark 370
normal normal light 32
early normal light 971
early normal dark 28
early reduced dark 25
early reduced light 483
normal reduced light 36
normal reduced dark 810
TOTAL
PROGENCY <u>2755</u>
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2. The locus in the center is TIME TO FRUIT. Tendril size is at the beginning of the locus and the distance between the locus B and locus C is R2
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