Scientists are able to understand the earth's interior by studying these seismic waves. They are waves of energy that travel through Earth, and actually move similarly to other types of waves, like sound waves, light waves, and water waves.
It’s quite interesting because
they give out lots of useful information.
But really this only scratches the surface on what they can do!
Happy to help!
~Brooke❤️
DNA evidence and the fossil record indicate are the ancestors of the living cetaceans were land-dwelling mammals. DNA evidence allows to trace the evolutionary origin of taxonomic groups.
DNA evidence refers to the linear order of nucleotides, which can be used to trace the evolutionary origin of a particular taxonomic group.
When the linear order of DNA nucleotides is conserved, it is known as sequence homology.
Fossils are preserved remains of organisms that once lived on the Earth, which can also be used as evidence to trace the evolutionary origin of a given group.
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Answer:
Organisms form carbon film when sediments cover the organisms and decay of organisms form hollows.
Explanation:
Answer:
Compounds are made of different types of atoms.
Elements cannot be broken down by physical or chemical changes
Elements are made of only one type of atom.
Explanation:
An Element is any one of the simplest chemical substances that CANNOT be decomposed in a chemical reaction or by any chemical means and made up of atoms all having the same number of protons. Examples are Sodium (Na), Nitrogen (N2), Aluminium (Al)
Compound is a substance formed by chemical union of two or more ingredients in definite proportions by weight. examples are NaCl (Sodium Chloride), NH3 (Ammonia)