Answer:
<em>Scientific models</em><em> are used to predict and elaborate the behaviour of the real objects in the field of physics, chemistry, ecology and earth science. </em>
<em>It is used to gain improved </em><em>understanding of the processes and systems. </em>
Explanation:
However, every model have some limitations because they are not the representative of every possible scenario. For instance, relationship between time and distance is the idea model, study of cell and its various parts uses physical model, predicting earthquake uses computer model.
Oxygen, Silicon, Iron, Sodium, Aluminum, Calcium, Magnesium, Potassium
Im not really sure what you mean by this but, from what I get, we all humans, animals, and plants need oxygen and food to survive. tree are very important cause we need them to give us oxygen, and we need animals or plants to have food. Hope this is what you were looking for.
