The correct answer is - marine organisms.
Both, the oil and the natural gas are formed on the basis of dead marine organisms. When the marine organisms were dying, they were falling in depths and onto the sea/ocean floor. The sea floor is covered with very soft sediments, and if they were not eaten by scavengers, or they have been covered with another layer of sediments, they have been relatively well preserved. As they were decomposing, the isolation, temperature, and pressure, managed to transform the dead remains of the marine organisms into oily sticky liquid that over time gained the characteristics that we see now in the oil and the natural gas.
The inflammatory response occurs when tissues are injured by bacteria,trauma,toxins,heat,or any other cause.The damaged cells release chemicals including histamine, bradykinin,and prostaglandins. These chemical cause blood vessels to leak fluid into the tissues, causing swelling
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When you expect something, but get something else, you have a reason big enough to ask new questions and start a new investigation.
Example:
If you create a tree by artificially breeding different species, and then plant it with certain expectations in width, size, bark width, leaf shape, etc. and things go differently, a new investigation might begin with a whole new load of questions.
Answer:

Hope it helped,
Happy homewok/ study/ exam!
The equation is glucose+oxygen->carbon dioxide +water and energy in the form of ATP
Answer:
Housing development and shopping mall
Explanation:
housing development and shopping mall may cause wildlife habitats destroyed. also the land being destroyed is not unenvironmetally friendly