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pishuonlain [190]
3 years ago
6

Approximately how long do scientists think chemical evolution took?

Biology
1 answer:
Juliette [100K]3 years ago
7 0

Scientist believe it took less than a billion years.

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A scientist is studying a section of exposed sedimentary rock layers that are near a fault line (a
Umnica [9.8K]

Answer:

Principle of cross-cutting relationships

Explanation:

The geologic principle that will provide the most profound explanation to this problem is the principle of cross-cutting relationships.

It states that "features that cross-cuts rocks are younger than the layer they cut through".

Some of these features are intrusions, faults and joints.

The logic behind this reasoning is that without the rock in place, the cross-cutting event wouldn't have been recorded.

We can liken this to a fracture on the wall of a building. If the wall is not erected, there wouldn't be any fracture. Therefore, the fracture is far younger than the wall.

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3 years ago
Without _______, which are important processes that cycle nutrients, organisms wouldn't survive.
NARA [144]

Answer:

b

Explanation:

4 0
3 years ago
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You are given a task to produce massive quantities of Protein A from soybean so that the Protein A can be added to a mixture to
kiruha [24]

Producing 100 kg of protein A requires calculating the necessary amount of soy, calculating the necessary inputs, looking for related information, and supervising the process.

To produce 100 kg of protein A with soybeans, I must look for information related to the cultivation of soybeans, what is the protein concentration in a soybean, and other aspects necessary for its maintenance and harvest.

In this search, I find that soy has a protein concentration of 50% or higher, so if I have to get 100 kg of protein, I must get at least 200 kg of soy.

So I grow some soybean plants in pots inside my house and I harvest their grains until I complete 200kg, supervising the whole process so that the plant does not suffer any disease or problem.

Learn more in: brainly.com/question/14824019

7 0
3 years ago
The essential difference between an experiment and an observational study is that a. observational studies always involve large
Nataly_w [17]

Answer:

An experiment imposes treatment on the subjects, but an observational study does not

Explanation:

Observational studies are research studies in which an effect, process behaviour etc. are observed, without any change. For example, observation of the  possible effect of a treatment on subjects.

On the other hand, experimental studies are studies in which the treatment is included. Experimental studies are randomized, meaning that subjects that are in experiment are randomly put to a treated group or a control group.

3 0
3 years ago
HEALTH: What are the three dimensions of mental health?
Inessa05 [86]

<u>Three dimensions of mental health are;</u>

  1. Physical Health
  2. Mental  Health
  3. Social Health

<u>Explanation:</u>

Mental health of the person is determined by the physical, mental and social health of an individual. A person should be physically active and should have a healthy and active body. Mentally the person should be sound so that he handles his life situations in a proper way.

Social health refers to the active gelling of the person with the society achieving his goals, performing his day to day tasks in the society. If a person has problem in any of the three areas then he is said to be mentally ill.

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3 years ago
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