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IRISSAK [1]
2 years ago
14

Describe how scientists think the Earth was formed

Biology
1 answer:
schepotkina [342]2 years ago
5 0

Answer:

The Big Bang THEORY

Explanation:

They think an explosion occurred in space to create collisions between molecules. These collisions created the planets and life as we know it. They don't know where these molecules came from and it's never been proven, which completely debunks this theory for me.

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The economy of agrarian society is based on which of these activities
AleksandrR [38]

Answer: Farming

Explanation: Plowing the land is the  first source of wealth.

7 0
2 years ago
2. Describe the different ways that a system can be efficient. For example, time
Snezhnost [94]

What Is Economic Efficiency?

Economic efficiency is when all goods and factors of production in an economy are distributed or allocated to their most valuable uses and waste is eliminated or minimized.

KEY TAKEAWAYS

Economic efficiency is when every scarce resource in an economy is used and distributed among producers and consumers in a way that produces the most economic output and benefit to consumers.

Economic efficiency can involve efficient production decisions within firms and industries, efficient consumption decisions by individual consumers, and efficient distribution of consumer and producer goods across individual consumers and firms.

Pareto efficiency is when every economic good is optimally allocated across production and consumption so that no change to the arrangement can be made to make anyone better off without making someone else worse off.

1:17

Economic Efficiency

Understanding Economic Efficiency

Economic efficiency implies an economic state in which every resource is optimally allocated to serve each individual or entity in the best way while minimizing waste and inefficiency. When an economy is economically efficient, any changes made to assist one entity would harm another. In terms of production, goods are produced at their lowest possible cost, as are the variable inputs of production.

Some terms that encompass phases of economic efficiency include allocative efficiency, productive efficiency, distributive efficiency, and Pareto efficiency. A state of economic efficiency is essentially theoretical; a limit that can be approached but never reached. Instead, economists look at the amount of loss, referred to as waste, between pure efficiency and reality to see how efficiently an economy functions.

Economic Efficiency and Scarcity

The principles of economic efficiency are based on the concept that resources are scarce. Therefore, there are not sufficient resources to ensure that all aspects of an economy function at their highest capacity at all times. Instead, scarce resources must be distributed to meet the needs of the economy in an ideal way while also limiting the amount of waste produced. The ideal state is related to the welfare of the population with peak efficiency also resulting in the highest level of welfare possible based on the resources available.

Efficiency in Production, Allocation, and Distribution

Productive firms seek to maximize their profits by bringing in the most revenue while minimizing costs. To do this, they choose the combination of inputs that minimize their costs while producing as much output as possible. By doing so, they operate efficiently; when all firms in the economy do so, it is known as productive efficiency.

Consumers, likewise, seek to maximize their well-being by consuming combinations of final consumer goods that produce the highest total satisfaction of their wants and needs at the lowest cost to them. The resulting consumer demand guides productive (through the laws of supply and demand) firms to produce the right quantities of consumer goods in the economy that will provide the highest consumer satisfaction relative to the costs of inputs. When economic resources are allocated across different firms and industries (each following the principle of productive efficiency) in a way that produces the right quantities of final consumer goods, this is called allocative efficiency.

Finally, because each individual values goods differently and according to the law of diminishing marginal utility, the distribution of final consumer goods in an economy are efficient or inefficient. Distributive efficiency is when the consumer goods in an economy are distributed so that each unit is consumed by the individual who values that unit most highly compared to all other individuals. Note that this type of efficiency assumes that the amount of value that individuals place on economic goods can be quantified and compared across individuals.

Economic Efficiency and Welfare

Measuring economic efficiency is often subjective, relying on assumptions about the social good, or welfare, created and how well that serves consumers. In this regard, welfare relates to the standard of living and relative comfort experienced by people within the economy. At peak economic efficiency (when the economy is at productive and allocative efficiency), the welfare of one cannot be improved without subsequently lowering the welfare of another. This point is called Pareto efficiency

4 0
1 year ago
Biologists notice that a population of ferrets introduced into a reserve begins to show exponential growth. The figures represen
sesenic [268]

Answer:

A. 50, 88, 145, 227

Explanation:

The correct option would be option A.

<u>When something grows exponentially, it means the growth increased at a high rate. More specifically, each rate of increase results in more or less doubling of the preceding rate. For example, if the current value of growth rate is 2 for a substance that is growing exponentially, the next growth rates will be 4, 8, 16, etc.</u>

<em>In this particular illustration, the only option that best fit into an exponential system is option A in which the growth rate more or less doubles each time from 50 to 88, from 88 to 145, and then from 145 to 227.</em>

8 0
3 years ago
Research that seeks to understand the source of water pollution for given body of what is an example of applied science
Murrr4er [49]

Answer:

True

Explanation:

<em>Research that seeks to understand the source of water pollution for given body of what is indeed an example of applied science.</em>

Applied science is a branch of science that deals with the application of scientific knowledge to solve real-life problems.  This is as opposed to natural science which deals mainly with the physical world and is largely theoretical. <u>When the theoretical knowledge obtained from natural science is put to real use to solve existing problems, it is termed applied science. </u>

3 0
2 years ago
Which of the following is true regarding the cell theory?
natta225 [31]

The fundamental building blocks of life are cells. No matter how large or little, straightforward or complex, the cell hypothesis holds true for all living things. Cells are believed to be a component of all living things, hence they can reveal information about all life.

Schleiden and Schwann advocated spontaneous generation (also known as abiogenesis) as the mechanism for cell origination, but spontaneous generation was later demonstrated to be false. The famous phrase "Omnis cellula e cellula" by Rudolf Virchow "Only pre-existing cells can give rise to new ones." However, the portions of the hypothesis unrelated to how cells first formed withstood scientific investigation and are currently accepted by the majority of scientists. The following are the elements of contemporary cell theory that are commonly acknowledged:

The basic unit of structure and function in living things is the cell.

One or more cells make up every living thing.

Through cellular division, new cells are created from existing ones.

Learn more about Cells brainly.com/question/26133737

#SPJ1

5 0
1 year ago
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