What evidence from the experiment shows that conduction occurred? In your answer, be sure to include the materials involved in the transfer of heat through conduction.
Sample Response: The melting of the chocolate pieces one by one showed that it was caused by heat flowing through the foil bridge. The transfer of heat happened between the foil bridge and the chocolate pieces because they were touching each other.
The conduction was made by the foil which was touching the chocolate made the chocolate slowly melt because of the tea light giving heat to the foil the foil conducted it to the chocolate causing it to melt. Thus, option "C" is correct.
What are conduction, convection and radiation?Conduction refers to the transfer of the energy from one end to the other end from the conducting material. Heat energy, and electric energy all of these can conduct. For example - heat transfer from one end of the road to another.
Convection refers to the process in which heat energy is transferred to the liquid in various manners. For example - a geyser transfers the heat energy to the water.
Radiation refers to the transfer of heat in the form of a heatwave. For example - transferring of heat from the light bulb and heater.
Therefore, the given example can help us to understand the distribution of energy on earth.
Thus, option "C" is correct.
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Identify three bodily functions that the nervous system helps to regulate to help maintain homeostasis.
Three bodily functions that the nervous system helps to regulate to help maintain homeostasis include the release of epinephrine, thyroxine and acetylcholine.
What is Homeostasis?Homeostasis refers to the state of internal equilibrium of a biological system regarding its association with the surrounding environment.
Hormones are chemical messenger released by the nervous system that help to maintain the homeostasis.
Epinephrine is a hormone that helps the body maintain homeostasis by fighting against allergic reactions.
Moreover, thyroxine is another key messenger that modulates energy levels and growth.
In conclusion, three bodily functions that the nervous system helps to regulate to help maintain homeostasis include the release of epinephrine, thyroxine and acetylcholine.
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Choose all that apply: which resources are most important in the geopolitical landscape?
Group of answer choices
Oil/Fossil Fuels
Water
Gold
Land
The most important resources for man now in the geopolitical landscape is Oil/Fossil Fuels; option A.
What are resources?Resources refers to the materials or substances which are used by humans for their needs either directly or indirectly.
Examples of resources are gold, petroleum, coal, wood , water, etc.
The most important resources for man now in the geopolitical landscape is Oil/Fossil Fuels since they are required to many energy dependent processes.
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Which of the following is not a natural hazard?
a
Pollution
b
Landslides
c
Earthquakes
d
Coastal erosion
Answer:
A.) Pollution
Explanation:
Pollution is not a natural hazard because pollution is mostly created by humans. For the most part, landslides, earthquakes, and coastal erosion are disasters which occur naturally. In other words, humans generally don't cause these hazards, but they are the main contributor to pollution.
Which substance completes passive transport and facilitated diffusion
Answer: Facilitated diffusion therefore allows polar and charged molecules, such as carbohydrates, amino acids, nucleosides, and ions, to cross the plasma membrane
Explanation:
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What do stabilizing selection and directional selection have in common?
A. They are both forms of genetic drift.
B. They both decrease genetic variation.
C. They are both caused by female choice.
D. They both favor extreme phenotypes.
Answer:
they both decrease genetic variation
Which of the following changes to Earth is NOT caused by living organisms?
Answer:
is C, since cars and other non-living organisms release sulphur dioxide into the atmosphere
Describe an example of a sustainable yield model, other than a forest, that could help you make decisions about how to use your island resources.
Sustainability is the idea that people may live on Earth and utilise resources without destroying them or affecting future generations. The biological variety, food production, average global surface temperatures, CO2 concentrations, human population, and resource depletion are the five main environmental indicators that might point people in the direction of sustainability.
How can we figure out what yield is sustainable?The foundation for determining sustainable yield is the ratio of the water level decline in the well to the pumping rate, the amount of drawdown the well exhibits for a particular pumping rate over time, and the recovery rate. Data from aquifer tests are typically more trustworthy the longer they are conducted.
Example is a fish that can be kept alive forever because they can be nourished by the underlying natural system's regenerating abilities.
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