How can one tell which elements are more metallic than others by just looking at the periodic table?

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water pollution kills aquatic life. aquatic life includes algae and other plant life that use photosynthesis. photosynthesis takes   c02 out of the air.  

c02is a greenhouse gas.

43.452

step-by-step explanation:

284 times .153 = 43.452

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

there is none because earth is stationary and flat.