Answer:
the bystander effect
Explanation:
the bystander effect also called the bystander apathy is a psychological belief that purports that a victim is less likely to receive help from an individual if other people are present. The number of bystanders present can negatively influence the willingness of a would-be helper to help In a case of robbery, accident, stabbing or any life threatening or emergency situations.
<span>In archaeology, absolute dating is most accurate archaeology dating system that can even give a calendar year to the object. It is more dependent on laboratory analysis.
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</span><span>Some of the absolute dating methods are :
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</span><span>1) Radiocarbon Dating In Archaeology : All living being absorb carbon C12 and some amount of radiocarbon c14. Scientist have record of C14 in different organisms. After death radioactive carbon c14 starts to decay. Scientist compare the lose of c14 with actual amount of C14. the missing amount can determine the date the object to a precise period. Can be used only on organic matter.
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</span><span>2) Uranium - Lead Dating Technique In Archaeology: Rocks, that are formed by volcanic reaction or cataclysmic event, contain a small amount of radioactive substance. From the day the rock is formed its radioactivity begins to deplete. Like C14, by measuring the loss, the scientist can determine an age according to known loss rates.
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</span><span>3) Luminescence Dating In Archaeology</span>
<span /><span>Artefacts that are formed from crystalline materials and unearthed can be dated using luminescence analysis.Crystalline minerals when burnt in intense heat will produce different colors of flame.Mostly used to date pottery in archaeology.</span>
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The option that tells us the main theme of the passage is the fact that With the arrival of talking films in the 1920s, silent films became unprofitable.
<h3>What is the summary of the passage?</h3>
This passage is telling us of the reasons why the people had to stop making the silent movies. It is telling us of all of the issues that came with it and why the film makers had to do away with them.
First the movies were said to have been destroyed. That is the ones that were already in existence and how many of them had to be recycled so that they could get the metals that they contain.
All of this came to be based on the fact that these movies were no longer seen to be profitable anymore. Hence it was of no use having them around.
Read more on theme of a story here:
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Answer: see explanation below
Explanation: the synapse is the junction between the terminal of a neuron and either another neuron or a muscle or gland cell, over which nerve impulses pass. Typically when the same experiences trigger nerve responses over synapses, they are remembered (strengthened) leading to even faster responses very much like the muscle memory. The NMDA receptors (NMDARs) are glutamate-gated cation channels with high calcium permeability, very critical for the development of the central nervous system and various processes vital to learning, memory, and the formation of neural networks during development in the central nervous system (CNS). Since memories are assumed to be represented by vastly interconnected neural circuits in the brain, synaptic plasticity is key to learning and memory. In this, the NMDA receptor is very crucial for controlling synaptic plasticity (the ability of synapses to strengthen or weaken, in response to increases or decreases in their activity over time) and memory function.
Chandragupta's strategy was to attack the borders first, then the capital city.
So, your answer is D.)
