Answer:
Gravity is a force that attracts all objects towards each other. People are attracted towards the Earth and the Earth towards people, the Moon and the Earth are attracted towards each other, and the Sun and the Earth are attracted towards each other
Explanation:
Given the effects of precession, will this still be the case in 13,000 years? Explain your answer. Draw a diagram to illustrate this process.
Answer:
It change the longitude of stars.
Explanation:
Precession allows the stars to change slightly their longitude each year, so the sidereal year which is the orbital period of the earth around the sun, that takes the stars as a reference frame. It is 20 minutes longer than the solar year because of precession. This motion of the Earth's axis goes backward and forward in every 13,000 years so we can conclude that there is a great effect of precession on our earth's motion.
What materials absorb the most solar energy?(Sand, Water, Oil)
Answer:
sun,dark surfaces, water and metal.
Explanation:
Materials that absorb sunlight well include dark surfaces, water and metal. The sun's light energy arrives as a mixture of visible light, ultraviolet and infrared; some materials absorb all these wavelengths well, while others are better suited to a certain restricted types of light.
Which of the following is not one of the three important developments that was made in agriculture in the past years? A. a growing labor force 1 B. the use of biotechnology C. increased mechanization D. the development of agriculture as a business
Answer:
The correct answer is A.Explanation:
Becuase there was always a large labor force for the agricultural industry so this has not been a major development over the past 50 years.
Which country is marked by the letter X on the map?
Answer:
called Xile in Catalan
Explanation:
called Xile in Catalan
what do you think is the reference point for earth rotation
Answer:
North Pole
Explanation:
As viewed from the north pole star Polaris, Earth turns counterclockwise. The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is the point in the Northern Hemisphere where Earth's axis of rotation meets its surface. This point is distinct from Earth's North Magnetic Pole.