Classify the properties of aluminum as being physical properties or chemical properties. Aluminum is white in color.
Aluminum can be shaped into any form.
Aluminum reacts with acids to give off
hydrogen gas.
Aluminum burns in oxygen to form a
new substance.
The density of aluminum is 2,700 kg/m”.
Physical Property
Chemical Property
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explanation:

d. changes in climate and historical records

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vegtables oil and potato oil

1. the geologists have established a set of principals that can can be used o determine the relative ages of rock. this principal is applied to sedimentary and volcanic rocks. the rocks exposed to wall of grand canyon has layers and by studying the number of horizontal layers in the rock(strata) the relative age can be determined. the layer first formed will appear at the bottom and the the layer of strata last formed appear at the top. by using this information the approximate age of rocks can be determined.

2. carbon dating is used to find the relative age of rock in numbers which means for the rocks that has age between 1-70,000 years.

3. for the rocks of age range between 1,000 - billion of years potassium-argon dating is used.