Answer: both weigh the same.
This is a very obvious question just because the lead is heavier that does not mean it ways more than the other. One pound of feathers is the same as one pound of lead
This depends... I live in Southern Michigan, which is deciduous forest because they cover most of the Northern US.
The only way for gases to diffuse in and out of the leaf is through small openings on the bottom of the leaf, the stomata.
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The primary role of hydrochloric acid is to sterilize the food you eat and to prevent harmful bacteria from entering the GI tract. HCL also triggers the release of enzymes such as pepsin which are essential for the digestion of protein.