Answer:
D. Changing land use and burning fossil fuels.
Explanation:
Today, the carbon cycle is changing. Humans are moving more carbon into the atmosphere from other parts of the Earth system. More carbon is moving to the atmosphere when fossil fuels, like coal and oil, are burned. More carbon is moving to the atmosphere as humans get rid of forests by burning the trees.
The
likely topic of the lecture in the class that can be depicted from the scenario
is bias. Bias occurs when a group or individual is likely to act against or in
favor to a particular thing, person or other group in which can be seen from
the scenario that has been illustrated.
The substance that is coded for by a length of DNA is base. The correct option is A.
<h3>What is a base?</h3>
Nucleobases, also known as nitrogenous bases or simply bases, are nitrogen-containing biological compounds that form nucleosides, which are then components of nucleotides, all of which are the basic building blocks of nucleic acids.
The complete question is attached.
The substance that is coded for by a length of DNA is base.
Thus, the correct option is A.
For more details regarding nitrogenous bases, visit:
brainly.com/question/14090794
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The answer is C, because covalent compounds can only form between those that are gases (at least at first)