The nucleus is the cell's control center
The beginning of cultivation is regarded as a landmark in the history of human progress because it provides opportunities to manage nature and the environment in return to earn their livelihoods.
<h3>What is Cultivation?</h3>
Cultivation may be defined as the process of preparing lands and growing crops by the farmers for the huge human population as well as animals. It is an agricultural practice.
The beginning of cultivation delivers an idea to humans through which they can sustain themselves by earning income. The activity of cultivation was initiated in the Neolithic age. Since then, it creates a lot of opportunities for farmers in order to make their progress.
Therefore, the alteration of foods from food products represents the initiation of cultivation that is considered a landmark in the history of human progress.
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The correct answer is hypothesis.
The hypothesis can be defined and a statement, which is a possible answer to a scientific question. The hypothesis is proposed on the basis of the researches and the tests, which are already performed. the hypothesis can be tested through different experimental processes and can be proved or disproved according to the results obtained by the experimentation.
Answer:
Hydrogen bonds tend to be weaker than covalent or ionic bonds. The hydrogen bond formed between water molecules has a dissociation energy of 0.24 eV. A hydrogen bond has is approximately 90% ionic and 10% covalent. Van der Waals bonds are weak bonds with a dissociation energy of about 0.01 eV.
Explanation: