A carbon-14 sample starts with 100 atoms, and 5,730 years later, there are 50 atoms the half-life of carbon-14 are 5,730 years
The chemical element carbon has the atomic number six and the letter C assigned to it. It has a tetravalent atom, which means that four of its electrons can be used to create covalent chemical bonds. It is nonmetallic. The periodic table's group 14 includes it. The crust of the Earth contains 0.025 percent carbon.
Similar to hydrogen, oxygen, lead, and all the other chemical elements listed in the periodic table, carbon is an element. An extremely common element is carbon. As in diamonds and graphite, it can exist in pure or almost pure forms, but it can also interact with other elements to form molecules.
The half-life of carbon-14's degradation into nitrogen-14 is 5730 years, making it an unstable element. The time it takes for half of the Carbon-14 atoms to decay back into Nitrogen-14 is therefore 5730 years.
Therefore, Thus option (c) is correct.
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Answer: C
Explanation:
tropical climate
humid and rainy climate
mild climate with seasonal monsoons
Dry desert climate is the most common in Australia's outback. Hence, option A is appropriate.
The long-term pattern of the weather in a place is called the climate. Hour by hour, day by day, month by month, or even year by year, the weather might change. A region's climate is determined by its weather patterns, which are typically monitored for at least 30 years.
The city is characterized by a culture of terror. The nation's shifting economic landscape The business is working to create an environment that is conducive to innovation.
Nearly every element of our life is impacted by the climate, including our food supplies, transportation systems, clothing choices, and vacation destinations. It significantly affects our future, our health, and our means of subsistence. The long-term structure of the weather in any given location is called the climate.
The atmosphere, hydrosphere (liquid and vaporized water), cryosphere (frozen water), land surface, and biosphere interact to govern Earth's climate (living organisms). The Sun, as well as human activity, are two external influences that interact with these as well as one another.
Hence, option A is correct.
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Answer:
if your question is what do we need to survive like the requirements, it would literately be every organ you have with food and water. you also need blood and a nervous system.
Explanation:
B. Bangladesh and Cambodia
C. Australia and Philippines
D. Madagascar and South Africa
Basically, a well is a hole drilled into the ground to access water contained in an aquifer. A pipe and a pump are used to pull water out of the ground, and a screen filters out unwanted particles that could clog the pipe. Wells come in different shapes and sizes, depending on the type of material the well is drilled into and how much water is being pumped out.
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