Observation and experimentation have led many scientists to accept a theory about the origin of the universe, called The Big Bang Theory. Briefly describe one piece of evidence that supports this scientific theory. (4 points)

Answers

Answer 1

Answer:

Answer:

The Big Bang Theory is the dominant cosmological theory about the early development of the universe. Cosmologists use the term "Big Bang" to refer to the idea that the universe was originally very hot and dense at some finite time in the past. Since then it has cooled by expansion to the current diluted state and continues to expand today. The theory is supported by more complete and precise explanations from available scientific evidence and observation. According to the best measurements available in 2010, the initial conditions occurred approximately 13.3 or 13.9 billion years ago.

In general, three empirical evidences that support the cosmological theory of the Big Bang are considered. These are: the expansion of the universe that is expressed in Hubble's law and that can be seen in the redshift of galaxies, the detailed measurements of the cosmic microwave background, and the abundance of light elements. In addition, the correlation function of the large-scale structure of the universe fits with the Big Bang theory.

Answer 2

Answer: Red shift is one piece of observational evidence which supports the big bang theory. The fact that galaxies are moving away from us means that the universe was once much smaller, supporting the big bang theory which states that all the matter in the universe once occupied a single point with infinite density.

Related Questions

Question 1 (1 point) In this analogy, adding more students is analogous to: Question 1 options: Decreasing the volume of the reaction container. Adding more particles of reactants. Adding a chemical catalyst. Increasing the temperature of the reaction. Question 2 (1 point) In this analogy, shrinking the hallways is analogous to: Question 2 options: Decreasing the volume of the reaction container. Adding more particles of reactants. Adding a chemical catalyst. Increasing the temperature of the reaction. Question 3 (1 point) chemical catalyst helps change the rate of a chemical reaction by Question 3 options: Adding more reactants Decreasing the activation energy Increasing the activation energy Adding more products Question 4 (1 point) In this analogy, shortening the passing periods is analogous to: Question 4 options: Decreasing the volume of the reaction container. Adding more particles of reactants. Adding a chemical catalyst. Increasing the temperature of the reaction. Question 5 (1 point) In this analogy, hiring a matchmaker is analogous to: Question 5 options: Decreasing the volume of the reaction container. Adding more particles of reactants. Adding a chemical catalyst. Increasing the temperature of the reaction. Question 6 (1 point) What are two conditions that must be met in order for a chemical reaction to take place? Question 6 options: Collisions with the proper orientation Sufficient activation energy Appropriate coefficient of friction Both A and B Both B and C
What do you wrap your sandwich in? (pun, answer must be from the periodic table)
if an unknown mineral has a hardness between 5 and 9, what could you do to the mineral to find out more about its hardness?
During fission, _____. protons collide to create uranium-235 new elements are created when uranium breaks apart hydrogen atoms are fused together to create helium helium atoms are fused together to create hydrogen
A + c = r solve for a

The atmosphere's variable gases that most influence the greenhouse effect are _____. nitrogen and oxygen argon and carbon dioxide carbon dioxide and water vapor water vapor and ozone

Answers

The correct answer is carbon dioxide and water vapor

These negative gasses get modified and then remain in the atmosphere without the possibility of leaving, which is why the greenhouse effect occurs.

Answer;

Carbon dioxide and water

The atmosphere's variable gases that most influence the greenhouse effect are carbon dioxide and water.

Explanation;

Green house effect is a phenomenon where the radiation from the atmosphere of the earth warms the surface of the earth to a temperature above what it would be. It occurs when the atmosphere traps heat radiating from the earth towards the space.
Certain gases in the atmosphere block the heat from escaping, these gases are called the green house gases. These gases contribute to the green house effect, they include, water vapor which is the most abundant green house gas, carbon dioxide a very important component of the atmosphere, methane, nitrous oxide, CFCs, etc.

Which intrusive feature may start as a sill but, as more magma builds, it pushes upward like a lens

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An intrusive feature that starts as a sill, but build up with magma into a lens-like structure is a batholith. A batholith is composed of igneous rocks due to the hardened magma from the Earth's crust. The opposite of sill, dike, builds up to form a laccolith, another intrusive feature with a mushroom-like structure.

An atom in the ground state contains 8 valence electrons this atom is classified as a

Answers

Noble Gas. Metals have 1 or 2 Valence Electrons. Halogens have 7 Valence Electrons. Semi-Metals can have different amounts.

Answer:

Noble gas

Explanation:

With the exception of helium, all elements in Group 18 contain 8 electrons in the outermost shell; these are the noble gases.

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Mark and Ann took a two week hiking trip through Yosemite National Park. While hiking through the park they witnessed two large blocks of rock break away from Glacier Point. What is the initial transfer of energy that accelerates the rock down the side of the mountain?

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Potential energy. The energy you gain when it is at rest.

Potential energy is converted into kinetic energy.

The ratio of H2 gas to O2 gas will always remain 2:1, and the ratio of H2 gas to H2O gas will remain 1:1 so if the gas volumes are measured at the same temperature and pressure: 44.8 liters of H2 + _____ liters of O2 → ____ liters of H2O

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Final answer:

Given 44.8 liters of H₂ gas, 22.4 liters of O₂ gas would be required for a complete reaction, producing 44.8 liters of H₂O gas. This conclusion is reached by leveraging Avogadro's law, ideal gas law, and understanding stoichiometry.

Explanation:

The question involves understanding how standard molar volumes and stoichiometry play into gas reactions. Avogadro's law states that the volume of a gas is directly proportional to the number of moles of the gas. Therefore, if you have 44.8 liters of H₂ gas, complying with Avogadro's law and the given ratios of gases as stated in the problem, you can conclude that to react completely, you would need 22.4 liters of O₂ gas, producing a total of 44.8 liters of H₂O gas as per reaction stoichiometry.

Avogadro's law is critical to understanding gas behavior and stoichiometry. Equally, understanding the concept of the ideal gas law is necessary to perform stoichiometric calculations involving gaseous substances.

Dalton's law of partial pressures also plays into calculations involving gaseous mixtures and helps to understand how different gases within a mixture interact. Overall, comprehending these concepts grants insights into gas behavior under varying temperature, pressure, and volume conditions and how gases react in chemically balanced equations.

Learn more about Gas Stoichiometry here:

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44.8 liters of H2 + 22.4 liters of O2=44.8 liters of H2O

Are blue stars young or old? How can you tell?.

Answers

Astronomers measure the brightness of stars using light-years. This means that the light we see now left in that years ago, traveling through space in that distance at kilometer per second.

A star is born, it radiates energy for a long time, toward the end it expands, it may or may not explode, and then it dies. It vary in sizes, masses and surface temperature range. The colors of stars reflect their surface temperature. Their relative brightness is expressed in a scale of six magnitudes. The brightest the stars are first-magnitude stars, while the dimmest are sixth-magnitude stars.

The lower the number, the brighter the star.

For example:
Star color Surface Temperature
Blue-white around 25 000 K & higher
white around 10 000 K
yellow around 7 000 K
Red around 5 000 K & lower

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