The best and most correct answer among the choices provided by your question is the first choice or letter A. The swamp forests formed into tropical rain forests.
The Carboniferous Period<span> is famous for its vast swamp forests, such as the one depicted here. Such swamps produced the coal from which the term </span>Carboniferous<span>, or "carbon-bearing," is derived. The </span>Carboniferous Period<span> lasted from about 359.2 to 299 million years ago* during the late Paleozoic </span>Era<span>.</span>
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The basic government and society in Europe during the middle ages was based around the feudal system. Small communities were formed around the local lord and the manor. The lord owned the land and everything in it. He would keep the peasants safe in return for their service.
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If a student wants to study the effect of sunlight on plant growth. In his experiment, 12 plants receive normal amounts of sunlight, but half of them are kept under bright sun lamps all night long. The control group is: the amount of light the plant receives.
<h3>What is control group?</h3>
A control group is a type of experiment carried out using two variables based on this control group can be defined as the process in which experiment is carried on two different variables such as dependent variables and independent variables in which one of the variables is not experimented or tested.
Based on the given scenario if after 6 weeks, the plants heights measured which inturn means that the control group is the amount of light the plant receives.
Therefore if 12 plants receive normal amounts of sunlight, but half of them are kept under bright sun lamps all night long. The control group is: the amount of light the plant receives.
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That is false lesbians were, technically, legal in Germany. The exception was Austria, later annexed by the Germans, where sexual acts between women had been criminalized since the 19th century.
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Some consequences of the use of nuclear weapons were exposure to leukemia, cancer, or other terrible side effects from the radiation.
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