Well i know you need carbon nitrogen and oxygen but there might be more
When cleaning up water pollution in a large lake or river, it is important to clean up the entire watershed. It<span> is a basin-like landform defined by highpoints and ridgelines that descend into lower elevations and stream valleys. This is because pollution can be transfered to other areas of the lake or the river when this part is not cleaned well.</span>
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Retinitis pigmentosa often has an autosomal dominant inheritance pattern, which means one copy of an altered gene in each cell is sufficient to cause the disorder. Most people with autosomal dominant retinitis pigmentosa have an affected parent and other family members with the disorder.
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please explain the question
I agree: a capped soda bottle has very limited contact with the surroundings, as it has to be relatively closed so that the gas bubbles don't escape.
The remaining options have contact either with air (A and D) or with water from the outside (B)
