The theme of the given speech is the warning for the care of the natural resources as it turn into disaster.
<h3>What is a theme?</h3>
A theme is given as the message that has been delivered with the talk, play or the speech or any other art or literature practice.
The excerpt given is comprising the speech related to the environmental issues and the warning about the proper care to be taken. It is mentioned that the resources may turn in the disaster. Thus, the theme of the excerpt is given as to take care of natural resource to stop the disaster.
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Answer:
yes it is true it is gaining per second
Jackson.
Jackson encouraged Congress to adopt the Removal Act of 1830. The Act established a process whereby the President could grant land west of the Mississippi River to Indian tribes that agreed to give up their homelands.
I would select A. Nitrogen due to the fact Nitrogen is found in most soil samples and Aluminum and mercury are metals. Also, limestone i don't find beneficial to plants whatsoever.