Answer: Hello, Its number 1 Object #1 is an asteroid, and Object #2 is a moon.
Explanation: Its number one because a asteroid is a rock and a moon is made up of rock and orbits a planet witch is Earth
Primary succession occurs when new land is formed or bare rock is exposed
Migration helps in improving the quality of life of people. It helps to improve social life of people as they learn about new culture, customs, and languages which helps to improve brotherhood among people. Migration of skilled workers leads to a greater economic growth of the region.
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Answer:
Protostars are difficult to observe because they are surrounded by cocoons of gas and dust.