<span>There are 3 main pieces of evidence that support the big bang theory:
a.Evidence of the expansion of the universe.
In the year 1929, Edwin Hubble observed that galaxies were generally receding from us provided the first clue that the big bang theory might be right.
(Edwin Hubble announced that galaxies found outside our own galaxy (Milky Way), as observed in the year 1929, were systematically moving away from us, at a rate proportion to their distance from us.)
b.The abundance of light elemets ( h, he, li) in the universe is almost exactly as what the big bang predicts. elements were first fused within the protons and neutrons after the big bang
(Nucleosynthesis is a term that refers to the formation of heavy elements from the fusion of lighter elements. A second after the Big Bang occurred, the temperature of the universe was extremely hot and filled with neutrons, protons, electrons, positrons, photons and neutrinos.)
c.Cosmic Microwave Background (CMB) radiation is the remnant heat leftover from the big bang.
(First predicted by Ralph Alpherin, the existence of CMB radiation was first observed by Arno Penzias and Robert Wilson. The Big Bang was theorized as a hot place and expanded. The gas within that cooled down leaving radiation of the heat that was left.)</span>
Based on our science, the universe could have three possible shapes dependant on the amount of matter in it, the matter affects the curvature of the universe, linked to its shape and geometry. For example, a closed Universe will have a positive curvature, meaning that the average density is more than the critical density. An open universe, on the other hand, would have a negative curvature, and therefore the qaverage density would be less than the critical density. A flat universe would have no curvature and the average density would be equal to the critical density. These shapes relate to the fate of the universe, a closed universe would be finite, an open universe would be infinite and a flat universe would be infinite with no curve.
The role of a government in a mixed economy is to provide regulation for the business practice in the economy.
<h3>What is a
mixed economy?</h3>
This refers to the economy system in which there is a blend of economic systems in which individuals and the government share in the decision-making process.
Because of the structure, the mixed economy is a mixture of the capitalism and socialism economic system where people and government are actively involved in the system.
Therefore, the role of a government in a mixed economy is to provide regulation for the business practice in the economy.
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Answer: c. a meteoroid
Both meteor and meteorite are meteoroids that have penetrated the Earth's atmosphere while meteoroids are small parts of an asteroid or comet that are found orbiting the sun or near the Earth
The statement that weathering occurs as a result of direct contact with the atmosphere is true. Weathering is a process by which rocks are broken down by direct contact with the atmosphere which is caused by exposure to heat, ice, and elements in the atmosphere. Two type of weathering are: Physical and Chemical weathering.Physical weathering occurs when rocks, soil, or minerals are broken down through mechanical means.Chemical weathering occurs when rocks, soil, or minerals are broken down through reactions with chemicals that are in the air or are biologically introduced.
