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Wewaii [24]
3 years ago
15

Earth began as a mixture of about 90% stony, olivine-rich material and about 10% iron metal, just like the composition of chondr

itic meteorites. Soon after its formation the interior of the Earth is thought to have become very hot. What was the result of this increase in heat? A) The iron melted and collected in the interior of Earth to become its core. B) The olivine remained behind, becoming the mantle and the melted iron became the core. C) Both the olivine and iron melted and as they later solidified, became the mantle and the core. D) The olivine became the crust and the iron, melting, defended into the earth to become the core.
Biology
1 answer:
jonny [76]3 years ago
5 0

Answer: D. The olivine became the crust and the Iron melting defended the earth to become the core.

Explanation:

Earth was formed after it has went through a molten stage that led to the heavy materials sure as Iron metal moving inward to form the core, and the light materials moves toward the surface to form the crust.

The heat for the melting came from meteorite impacts which is usually very hot, the moon's impact, and the decay of radioactive elements.

Geological activity on the earth is driven from this initial source of heat at the earth's formation until now.

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The correct option is C: "Oxygen levels would be higher, but carbon dioxide levels would be the same".

Explanation:

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Hope that answers the question, have a great day!

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If a deer eats grass, what percentage of energy will the deer acquire from the grass? 0. 1 percent 1 percent 10 percent 100 perc
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The deer eats grass, the percentage of energy will the deer acquire from the grass will be dependent on the food chain then the accurate solution is 10 percent.

  1. In a food chain, the simplest 10 percent of the strength is transferred from one trophic stage to another.
  2. The grass is the manufacturer and the deer is the number one consumer, so, whilst the deer eats the grass, it acquires 10 percent of the entire strength of the grass. Rest strength is dissipated withinside the surroundings thru the metabolic tactics taking location withinside the grass.

<h3>What is the position of deer in the food chain?</h3>

The 2nd trophic stage includes organisms that consume the producers. These are known as number one purchasers or herbivores. Deer, turtles, and plenty of varieties of birds are herbivores. Secondary purchasers consume the herbivore.

Thus it is clear that 10 percent of energy will the deer acquire from the grass.

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