First, i'll explain what nebula is.
Nebulae "plural" are huge clouds of dust and gasses in outer space. Most of the gas is made up helium and also hydrogen. Nebulae are very big and can be be many light years away.
Planetary nebula is very different from the other kinds because planetary nebula contains old stars inside it. These nebulae are made from stars that are dying out. The dying stars start changing into red giants.
Answer:
The Earth is the third planet from the Sun.
Explanation:
The Earth is the third planet from the Sun, which is just the right distance for life to utilize the Sun's power and energy. Earth has two thirds of its surface covered by water and it is, up until now, the only planet to harbor life. It's atmosphere is rich in oxygen (which humans need to breath) and nitrogen. The sun's energy is crucial for Earth existence. Thanks to the atmosphere, the sun's energy reaches Earth attenuated. Otherwise, without atmosphere filtrating the sun rays and power, life as we know it wouldn't be possible.
Answer:
7.5
Explanation:
The tsunami in Sulawesi occurred in September 2018. It was as most earthquakes that trigger tsunamis, as the majority of the tsunamis are triggered by earthquakes that occur in the bellow the ocean, but this one occurred on land. The earthquake was preceded with multiple foreshocks, and when the main one came it was with a magnitude of 7.5 Richter. The earthquake occurred in the mountainous part of the peninsula. Initially the officials rang the tsunami alarm, but after half an hour called it off. That was a big mistake. Even though the tsunami was only on a local scale, it occurred, and it wiped out the coastal area. Around 4,340 people have lost their lives, with thousands of houses and infrastructure being destroyed. This is made it the most devastating earthquake in 2018, and the deadliest earthquake in Indonesia since 2006.