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pshichka [43]
2 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]2 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]2 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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Earth has a great variety of surface features that are caused by weathering and erosion. Which of the following describes a chan
Sidana [21]

Answer:

Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering.

 

Once a rock has been broken down, a process called erosion transports the bits of rock and mineral away. No rock on Earth is hard enough to resist the forces of weathering and erosion. Together, these processes carved landmarks such as the Grand Canyon, in the U.S. state of Arizona. This massive canyon is 446 kilometers (277 miles) long, as much as 29 kilometers (18 miles) wide, and 1,600 meters (1 mile) deep.

 

Weathering and erosion constantly change the rocky landscape of Earth.

Explanation:

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4 0
3 years ago
In the early 20th century, psychology focused on subjective information. The development of behaviorism shifted the focus of psy
Elena L [17]

Answer:

Objective

Explanation:

In psychology, objectivity is something that is not influenced by emotions or feeling therefore it is based on facts.

Therefore, objective psychology would refer to an approach that is based on quantitative and measurable behaviorism.

In the early 20th century, it was based on subjective information. This was the opposite of objective where personal perspectives, feelings and opinions were used in decision making.

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3 years ago
BRAINLIESTTTT ASAP!!!!
m_a_m_a [10]
I am sorry, I am not good in this area but, I found a site that could help you: http://www.chemicalelements.com/elements/ca.html
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The cytoplasm the single celled organism and circulatory system in the human both
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Transport substances throughout the organism
5 0
2 years ago
Match each step of the scientific method with its description.
labwork [276]

1- C ( this is an assumption; a hypothesis is always based on an assumption.

2- F ( this states to share the results with other classmates).

3- D (this is a description of an experiment you could conduct; you test a hypothesis (usually) by conducting an experiment.

4- A (this is something you could observe during the experiment, therefore it is an observation).

5- E (this sentence is a conclusion).

6- B (This is an actual question)

<h3>What is the hypothesis?</h3>

The hypothesis of most interest to the researcher is the alternative hypothesis.

For example: When we are talking about statistics, the alternative hypothesis is the one that proposes a new model or a new theory, in contrast to an old one, as in the case of the null hypothesis. Oftentimes alternative hypothesis has to be constant with the original research hypothesis in that it stems from previous research and investigation. In simple terms, the alternative hypothesis is in opposition or contrary to the null hypothesis.

Thus, this could be the answer.

To learn more about hypothesis click here:

brainly.com/question/5177511

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1 year ago
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