The scientific method's foundation is best described as "the process of hypothesis and testing through which scientific inquiry happens." Thus, the correct option is D.
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What is scientific method?</h3>
The scientific method is a set of actions that are followed in order to develop scientific knowledge.
The scientific process includes the following steps:
- To make observations on a particular natural occurrence and then generate questions based on those observations.
- To answer these questions, you must propose a credible explanation (i.e., a hypothesis).
- To put the working hypothesis to the test using experimental and/or observational methods.
- To gather information in order to confirm or refute a working theory.
- Analyze the findings and develop conclusions.
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<span>Answer is D. Nuclear power does not produce smoke or carbon dioxide.Nuclear power plants do not produce smoke or carbon dioxide while operating unlike fossil fueled power plants so it’s not contributing to the greenhouse effect but the process for refining uranium ore and creating reactor fuel requires a lot of energy.<span>
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Five layers of the atmosphere are troposphere, stratosphere, mesosphere, thermosphere and exosphere.
<u>Explanation:</u>
Troposphere is the lowermost layer of the atmosphere which is found in the 0-12 km range. The temperature of the troposphere ranges from 15°C to 51°C. Aircrafts driven by propellers can access the troposphere only.
Stratosphere is the layer of atmosphere that is second from earth. It is found in the 12-50 km range. Its temperature ranges from -51°C to-15°C. Jet-powered aircraft can access the stratosphere.
Mesosphere is the third atmospheric layer. It is found in the 50-85 km range. Its temperature ranges from -15°C to-120°C. rockets and rocket-powered spacecraft can access the mesosphere.
Thermosphere is the fourth atmospheric layer. It is found in the 500-100 km range. Its temperature ranges to about 2000°C. the International Space Station orbits in the thermosphere.
Exosphere is the topmost atmospheric layer. It extends to 10000 km above earth. Its temperature is greater than 2000°C. most of the satellites that orbit the earth are found in the exosphere.
The density of atmospheric layers decreases while moving up along the layers. Thus troposphere has the maximum density.
Serratus anterior would be the primary muscle. Correct me if I’m wrong.
Disaccharide is a simple compound which is made up of two molecules of sugar which include glucose and galactose.
These glucose molecules form a crystalline water soluble compound.
This is found in food like sucrose and lactose. This is composed of four chemical grouping of carbohydrates.
Chocolates are also considered as disaccharide compound due to presence of sugar.
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