Electronegativity.
If the difference in electronegativity for the atoms in a bond is greater than 0.4, we consider the bond polar. If the difference in electronegativity is less than 0.4, the bond is essentially nonpolar.
Answer:
Invertebrates.
Explanation:
Invertebrate refers to animals with no backbone.
Keeps the trees from catching things, the trees are healthy and would grow bigger.
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The National Aeronautics and Space Administration, or NASA, is the agency dedicated to space exploration; he represents the United States government.
<h3>What is NASA?</h3>
National Aeronautics and Space Administration is an agency of the United States federal government responsible for research and development of space exploration technologies and programs. Its official mission is to "foster the future of space research, discovery and exploration".
With this information, we can conclude that NASA is a United States government agency that is responsible for science and technology related to air and space.
Learn more about NASA in brainly.com/question/20763143
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