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pshichka [43]
3 years ago
12

A team of archaeologists excavating a sedimentary rock layer come across some primitive hunting tools used by early humans. As t

he dig progresses, they unearth the fossilized remains of a dinosaur from another layer of the sedimentary rock. Why do these discoveries indicate that the rocks were formed over millions of years?
Biology
2 answers:
Debora [2.8K]3 years ago
6 0

Explanation:

The discoveries indicates that the rocks were formed over millions of years ago due to the age of fossils they contain.

Fossils are the preserved remains of life found in rocks. Most fossils are used in relative dating of rocks.

  • Dinosaurs are extinct organisms that once lived in the Mesozoic. This was about 100 million years ago.
  • Tool man also grazed the surface of the earth just a few thousands to a million years.
  • We are able to find their fossils in rocks because they have lived in some certain geologic periods.
  • Here we are using the fossils to date the rock and this is called relative dating

learn more:

Fossils brainly.com/question/7382392

#learnwithBrainly

blagie [28]3 years ago
3 0

Answer:

C) Dinosaurs became extinct millions of years before humans appeared.

Explanation:

Dinosaurs became extinct millions of years before humans evolved. So the sedimentary rock that contained the hunting tools and the dinosaur fossil would have formed over a period of millions of years.

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RoseWind [281]

Answer:

Tofu and soy oil come from soy bean plants that are grown on farms. Many farmers grow soy beans as cash crops that they can send to places such as tofu processing plants. Soybean plants are legumes. Legumes have bacteria on nodules which are on the roots of the plant. The bacteria on the nodules takes nitrogen from the air and fixes it into the soil, so that other plants that require nitrogen can use it as well.

This nitrogen cycle that was breifly discussed above is used in what farmers call a crop rotation. Farmers use soybeans and other legumes in roatations with grass crops such as corn or wheat. Grass crops are unable to take their own nitrogen from the air so they either need the nitrogen in the soil that the legumes provide for them in a crop rotation or they need a chemical fertilizer containing nitrogen. Many farmers choose to use both. Most farmers use a two or four year rotation on their fields. In a two year rotation a farmer will alternate a year of a legume such as soybeans and a year of a grass crop such as corn. In a four year rotation a farmer will alternate back and forth between legumes and grass crops just as in a two year rotation, but instead he will use four differnt crops. For example, a farmer may plant a rotation of soybeans, corn, alfalfa (a legume), then wheat (a grass).

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3 years ago
When you are sick, extra white blood cells are created by the _____.
azamat
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8 0
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aliina [53]
I think False ..........................................
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Explanation:

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