The flow of heat from Earth's interior to the surface is estimated at 47 terawatts<span>(TW) and comes from two main sources in roughly equal amounts: the radiogenic heat produced by the radioactive decay of </span>isotopes<span> in the mantle and </span>crust<span>, and the primordial heat left over from the formation of the Earth.</span>
Answer:
True
Explanation:
Kepler's second law states that for a planet orbiting a star, if we join the planet and the star by an imaginary line, such line sweeps equal areas in equal times.
Let's imagine the planetary orbit is elliptical. When the planet is closest to the star it travels a large distance in its orbit but takes little time to travel. When the planet is furthest from the star, it travels a small distance in the orbit but in a long time so it ends up sweeping the same are as in the first case.
Therefore, this means when the planet is closest to the star it must have a greater speed than when it's furthest. We know this thanks to the speed formula v = d/t (velocity equals distance divided by time).
For a great distance and small time, speed is a large value.
For a small distance and a great time, speed is a small value.
B, g, f, c(maybe), d, e(maybe)
1. Pack a first aid kit, Water, and snacks
2. Try looking at the map, read the riddle, and think about the placethat they are talking about!
3. I say don't worry about "WHERE?" the adventure it's self is the mystery.
4. HAVE FUN!
