What technology is used to study the night sky?

Japan is a group of four islands off the coast of asia. what effect do you think has had on the lives of the japanese?

Why is the huronian supergroup rock formation particularly interesting to scientists? because it looks like a cross-section of a giant, stone encyclopedia because it formed during the period when oxygen began to accumulate in the atmosphere because it contains unusually large amounts of oxygen and sulfur because it dramatically altered the planet's development when it first formed

East asia is considered a less developed nation. true or false