PLANETS

1 answer:

6 0

The four inner planets have slower orbits, slower spin, no rings, and they are made of rock and metal. The four outer planets have faster orbits and spins, a composition of gases and liquids, numerous moons, and rings. The outer planets are made of hydrogen and helium, so they are called gas giants.

Sun: stands at the edge of the area

Mercury = 1 step from sun

Venus = 2 steps from sun

Earth = 2.5 steps from sun

Mars = 4 steps from sun

Asteroid belt = 8 steps from sun

Jupiter = 13 steps from sun

Saturn = 24 steps from sun

Uranus = 49 steps from sun

Neptune = 76 steps from sun

Kuiper belt = 100 steps from sun

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What have scientists used to build a chronology of earths past

eduard

Hi,

Scientists have used rock samples to date the Earth's past. They also might use Steno's principles.

Relative dating is the determination of the age of a rock or geological event by comparing with other rock/ geologic events. Absolute dating is a form of geologic dating that gives an actual date or age in history that the item was formed or died in years.

Steno's principles are:

Law of superposition - Bottom layer is the oldest, top layer of the youngest In undisturbed layers of sedimentary rock or magma.

Original horizontally - When sedimentary rock layers form, they are "created in a horizontal form.

The Principle of Lateral Continuity - States that layers of sediment initially extend laterally in all directions.

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Do you see any resolutions of humans coming together to function as a team to prevent the global temperature rise?

horsena [70]

Answer:

By conducting to plant more trees and reducing the use of gas that emitting Co2 that cause to rise the temperature.

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3 years ago

If Earth's atmosphere did not contain greenhouse gasses and was only composed of Nitrogen and Oxygen, by how much would Earth's

Flauer [41]

Answer: 1- Option (D)

2- Option (A)

Explanation:

The green house gases plays a significant role in the earth's global temperature. In absence of green house gas, the earth would have been very much cold and life would would be difficult to exist. The average global temperature would have been about -15°C to 25°C. So the most favorable answer given here is that the earth's temperature would have decrease by about 60°C.

Carbon dioxide (CO₂) is not the most abundant green house gas. It is the second most abundant. The present composition of CO₂ in the atmosphere is about 0.04% by volume. A small increase in the CO₂ level, can lead to a global rise in the temperature. Hence, the above statement is false.

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In geology, the Radioactive dating is significant because its provides a significant source of information about the ages of fossils and the deduced rates of evolutionary change.

<h3>What is a Radioactive dating?</h3>

This refers to the technique that is used to know the date of materials such as rocks or carbon in which the trace radioactive impurities were selectively incorporated when they were formed.

It determines the dating of rocks and minerals through the use of a radioactive isotopes, it is also useful for igneous and metamorphic rocks that cannot be dated by the stratigraphic correlation method.

As the carbon dating helps to determine the age of an object containing organic material by using the properties of its radiocarbon, it is considered a poor tool for finding the age of the dinosaur skull in the purple layer because the collagen in the dinosaur's bone has usually long since decayed away and is therefore unavailable for radiocarbon dating.