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.
Answer:
b is the correct answer ok bro
C
Explanation:
The only hydrocarbon from the given options is molecule C.
The compound is an aromatic hydrocarbon.
- Hydrocarbons are compound composed of hydrogen and carbon only .
- A hydrocarbon is mostly made up of two atoms that are covalently bonded to one another.
- The major source of hydrocarbons is crude oil or petroleum, natural gas and coal.
- There are many known hydrocarbons.
- Most hydrocarbons burn in excess air to produce carbon dioxide and water.
- The reaction is exothermic.
- Only option C contains Hydrogen and Carbon.
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Answer : it takes six turns of the Calvin cycle to fix six carbon atoms from CO2. These six turns require energy input from 12 ATP molecules and 12 NADPH molecules in the reduction step and 6 ATP molecules in the regeneration step.
Answer:
a scientific theory of the origin of species of plants and animals
