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Answer:
tungsten metal is the strongest metal.
Answer:
B
Explanation:
To begin with, it is clear that this cell has a cell wall (the rigid cubicle like structure around the cell). Only plants (that can carry out photosynthesis) have a cell wall. Secondly, one can view the chloroplasts in the cell (the organelles with green pigments inside). This is where photosynthesis takes place in the cell.
The answer is the last option. both a and b are correct
If it can be observed without changing the identity then it is a physical property.