Longitudinal waves are compressional waves which means they travel in one direction and do not radiate out.
They are created by continuous intermittent compression and thus will have sparse spacing and then compressed and then sparse, compressed and so on.
Such wave requires a medium such as solid liquid or air to travel thru.
I hope this helps ^-^
Areas near continents where freshwater rivers enter the ocean. The ocean IS salt water.
Answer:
The answer is "false".
Explanation:
The desert is identified as just an area of less receiving rainfall like 10 inches, or 25 cm, per year. Though most of us believe that the deserts or areas who don't get a lot of rain, it can take the form of rain or snow.
In the spring season, like October and November, when the desert receives heavy rain, unexpected flowering of the flowers under the soil can appear, that's why the given statement is false.
Answer:
B, because it asks for the benefits, and in society, being able to pay fees is a big benefit.
Explanation:
Vertebrates have a bilateral symmetry due to which their entire body is divided into right and left halves while the invertebrates either have radial symmetry or the bilateral symmetry. Therefore, option D is correct.
The other basic differences between the vertebrates and the invertebrates are that vertebrates have a spinal cord and a backbone while invertebrates lack them, vertebrates have well developed brain, lungs or gills in respiratory system and closed circulatory system.