A pearl Harbor. that was when we went from staying neutral to entering the war
Can you take a better picture so that all of the words can be seen,maybe horizontally?
An estuary is where salt water and fresh water meet. Estuaries are usually found at the edge of the coast, where the ocean water, or salty water, meets river, lake, any fresh water source, water.
A tributary is something completely different. It is a, usually smaller than the main river or lake, river/stream stemming off a bigger river or lake, or flowing into that river or lake.
The question is asking us to complete the following sentence: "The resources that are provided by Earth are known as _______ resources. These resources are for example oil, coal and wind power - they are provided by the Earth. We call those resources "natural" resources - the correct option is A. Natural resources can be both renewable (such as wind) and non-renewable, such as coild and oil (they take too long to be renewed so if we use them up, we won't have any more).
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