The distances are so great and vast that they need a large measurement to easier express the distances. They use Astronomical Units (AUs) for distances within our solar system.
Answer:
c) Magma C
Explanation:
The magma marked with C, is a felsic (rhyolitic) magma. This type of magma has high content of silica, making it highly viscous, and it also has high content of gases. The high content of gases comes from the high viscosity, as the gases are trapped inside the magma and can not get out of it. This results in eruptions of explosive or effusive type. When the magma rises, the temperature and pressure change, with results in explosion of the trapped gases in the highly viscous magma. Through this explosion, lot of pyroclastic material is shot out of the volcano in the surrounding area, making it very dangerous for everything in its surrounding area.
K black hole
I think it’s correct if it’s not then I’m sorry I tried
Explanation:

<em>Today, South Africa produces only 4.2% of the world's gold. In South Africa, mining for gold typically involves methods like panning, sluicing, dredging, hard rock mining and by-product mining. </em>