Outline why the estimate made in (b)(i) is unlikely to be the actual age of theuniverse.

Estimate the age of the universe in seconds using the Hubble constantH0 = 70 km s–1 Mpc–1.

Geologists base their estimate that the Earth is 4.56 billion years old onGroup of answer choicesradiometric age dates on rocks from Wyoming.isotopic dating of meteorites thought to be from primitive solids of the early Solar System.cross-cutting relationships.the rate of cooling of the Earth since it formed.

According to Hubble time and the Big Bang, how old is the universe approximately?Group of answer choices14- 15 billion years2017 years14-15 million years14,000 years

7.Question 7Lead-lead dating is a great way to figure out the age of something that is close to the age of the solar system. It based on the radioactive decay of uranium.Uranium-238 decays (with intermediate steps) to lead-206 with a half life of 4.5 billion years. Uranium-235 decays to lead-207 with a half life of 0.7 billion years.Which one of the following statements is true?1 pointMeasuring the abundance of uranium-235 shows you how many half-lives have passed since the formation of the rockA higher ratio of lead-204 to lead-206 implies a younger rockThe technique requires finding parts of the meteorite with different abundances of lead and trying to determine how much extra lead exists because of uranium decayObjects which are younger will have more lead-207 than objects which are older.

How old is our planet Earth?4.6 billion years old6,000 years old4.6 million years oldWe do not have enough information to accurately date the age of Earth.