Human and physical (look up the definition.)
Answer:
Once the fusion reactions begin, they exert an outward pressure. As long as the inward force of gravity and the outward force generated by the fusion reactions are equal, the star remains stable.First, stars fuse hydrogen atoms into helium. Helium atoms then fuse to create beryllium, and so on, until fusion in the star's core has created every element up to iron.
The density of air in a limited amount of space.
Answer:
Some advantage and disadvantage
Explanation:
Increasing cost of services such as health care and education
Helps to reduce any labour shortages Overcrowding
Migrants are more prepared to take on low paid, low skilled jobs Disagreements between different religions and cultures
drums are used to gather a community together and for ceremonial purposes.