Why for thousand of years people believed that stars moved across earth sky

Answers

Answer 1

Answer: Because the earth rotates. and the stars and constellations are in their exact same spots in the universe. its the same as the sun. some people can argue that the sun moves east to west, but in reality, its because the earth is rotating. :)

btw, this is more like an earth science question, not chemistry.

Answer 2

Answer: Because they did not have the proper technology. Hope my answer was useful.

Related Questions

Define electron affinity
Is solid copper sulphate a conductor or insulator
If you have 4 moles of zinc and 4 moles of hydrochloric acid, which of these would be the limiting reactant?
A sample of vinegar has a pH of 5, and a sample of rainwater has a pH of 6. Which of the following statements best describes these two substances?A. Both samples are bases, and vinegar is more basic.B. Both samples are acids, and vinegar is more acidic.C. Both samples are bases, and rainwater is more basic.D. Both samples are acids, and rainwater is more acidic.
Examples of chemical changes in nature

Atoms of Ca and S would be expected to react in a ratio ofA) 1:1
B) 1:2
C)2:1
D)3:1

Answers

Answer:

Option A = 1:1

Explanation:

The atoms of calcium and sulphur when react their ration is 1:1. The charge on calcium is +2 and on sulphur is -2.

Ca⁺²S⁻²

The +2 and -2 charges are cancel out and overall charge will be zero.

CaS

so their atomic ratio will be 1:1

What is the relationship
between different forms of energy?

Answers

Answer:

Energy exists in different forms, all of which can be classified as either potential energy or kinetic energy. Potential energy is energy stored in an object due to its position or arrangement. Kinetic energy is energy of an object due to its movement - its motion.

Explanation:

Answer:The law of the conservation of energy states that energy is neither created nor destroyed. Instead, it is simply transferred from one type of energy to another, or from one form of energy to another. The difference between mechanical energy and kinetic energy is that kinetic energy is a type of energy, while mechanical energy is a form of energy.

Which element has the electron configuration [Xe] 6s2 4f14 5d10 6p2?

Answers

The electron configuration of lead is [Xe] 6s2, 4f14, 5d10, 6p2 according to the Aufbau principle.

3. the closeness of a measurment to its true value is a measure of its ____ ?

Answers

The closeness of a measurement to its true value is a measure of its Accuracy.

When a nonmetal bonds with a nonmetal, they form a(n) _______________

Answers

they form a covalent bond

Workers digging a tunnel through a city find someancient pots decorated with geometric designs.
Which of the following tasks might they ask a
chemist to do? Explain your answer.
a. Determine the materials used to make the pots.
b. Explain what the designs on the pots represent.
c. Recommend how to store the pots to prevent
further damage.

Answers

Answer:

a. Determine the materials used to make the pots.

Explanation:

Workers digging a tunnel through a city who find some ancient pots decorated with geometric designs will employ the services of a chemist.

The chemist would help to determine the materials which were used to make the pots . This is usually done by various type of experiments and observations. After the constituent of the pot is gotten then more information would be derived from the possible source and use of the pot

Other Questions

Which substance is a molecule?A. water B. sodium C. salt water D. sand and salt

Which statement best describes the process of making a solution by diluting a stock solution?

What is the total amount of heat required to vaporize 1.00 gram of H2O(g) at 100.0C and 1 atmosphere?(1) 4.18 J(2) 334 J(3) 373 J(4) 2260 J

An unknown compound contains only carbon, hydrogen, and oxygen (cxhyoz). combustion of 3.50 g of this compound produced 5.13 g of carbon dioxide and 2.10 g of water.how many moles of hydrogen, h, were in the original sample?