Answer: Fm also known as Frequency Modulation.... is to generate a freuency modulated signal, the frequency of the radio carrier is changed in line with the amplitude of the incoming audio signal
The answer to this question is:
A. Barley and wheat were both civilizations' main crops
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Answer:
Felsic magma
Explanation:
Felsic magmas are higher in silica. The higher the amount of silica in the magma, the more viscous it is. Viscosity determines what the magma will do. Most felsic magma will stay deeper in the crust and will cool to form rocks such as granite. If felsic magma rises into a magma chamber, it may be too viscous to move and so it gets stuck. Dissolved gases become trapped by thick magma and the magma chamber begins to build pressure and felsic magmas will erupt explosively.
I think it might be erosion because erosion breaks down objects
The tropical rainforest is a biome with a constant temperature and a high rainfall. The level of humidity and density of the vegetation give the ecosystem a unique water and nutrient cycle. Rainforests around the world are threatened by human expansion.