The best way to do a observation can be a microscope or by taking notes ,and by , taking pictures or, asking questions about the subject that you and the teacher or you, your teacher and the class is talking about .! Hope this helps ..
Clay is the least permeable type of soil. So the answer would be D-Clay
The carbon cycle - CO2 is fixed into biomolecules.
Answer: A) Organisms have cells with different shapes and functions.
Explanation: The cell theory explains that all organisms and plants are made of a basic structure or units, cells.
A cast<span> is a 3-D example of an object of the past created when a </span>mold<span> fills up with sediment like mud, sand or volcanic ash. </span>Fossils<span> can form when hard parts of a </span>fossil<span> are replaced by other minerals</span><span>.</span>
