The answer of your question
<span>being similar: they are the
consequences of the "Lumières" (Enlightenment), with some ideals of
constitution, liberty, self government, etc.
</span>
The only answer related to the subject is "the results of their experiments".
After Scientific revolution scientists came up with theoretical conceptions and tried to prove them with experiments. There had to be both theoretical explanation and emirical proof. Before they were much more liberal when it comes to coming up with "scientific theorems", which explained results of their experiments.
<span>The Sahel is a zone of transition
in Africa between the Sahara Desert to the north and the Sudanian Savanna to
the south. The climate takes elements from both climates. The recent global warming trend has led to desertification and this has led to the Sahara expanding into Sahel.</span>
The correct answer is person's performance
<u>
Hypotheses</u>,<u> dependent</u> and <u>independent variables</u> form a set of tools that help us to create theories about natural phenomena.
The process for investigating a particular phenomenon in nature usually involves three levels. In the first level, observation of facts, phenomena, behaviors and activities takes place; at the second level, we have the hypotheses and finally, at the third level, theories, valid and sustainable hypotheses (those that have been tested) arise.
Dependent Variable are values (phenomena or facts) to be discovered or explained, by virtue of being influenced, determined or affected by the independent variable.
