The correct answer is surface wave
Stars have large amounts of hydrogen and its the lightest element and requires the least energy to fuse then it becomes helium then carbon and oxygen then sodium neon and magnesium then silicon sulfur and phosphorus and finally iron and nickel which are the heaviest elements that can be made via fusion
Hello!
Answer and explanation:
There are three main sources of heat in the deep earth:
1) heat from when the planet formed and accreted, which has not yet been lost.
2)frictional heating, caused by denser core material sinking to the center of the planet.
3) heat from the decay of radioactive elements.
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Answer:
Sundial is an instrument showing the time by the shadow of a pointer cast by the sun on to a plate marked with the hours of the day.
there are three ways by which we can transfer heat from one place to other
1. Conduction
In this method of heat transfer heat can be transferred from one place to other without actual movement of medium molecules. This is possible in solid conducting mediums
2. Convection
Here heat energy is carried away along with the medium molecules where medium molecules can move from one place to other while heat is transferred. It is possible in liquid and gas but not possible in solids
3. Radiation
In this mode of heat transfer we do not require any medium and here heat transferred by electromagnetic waves
So we can feel heat from sun in form of electromagnetic waves and it is the fastest way to transfer the heat also it do not require any medium
