Text: he read a book about demographics, where it was said that a population increase if there are no obstacles but they stop increasing when the food is not enough for everyone, then it is only the strongest who survive.

Correct capitalization: He read a book about demographics, where it was said that a population increase if there are no obstacles but they stop increasing when the food is not enough for everyone, then it is only the strongest who survive.

Text: 4:31 and when they had prayed, the place was shaken where they were assembled together; and they were all filled with the holy ghost, and they spake the word of god with boldness.

Correct capitalization: 4:31 And when they had prayed, the place was shaken where they were assembled together; and they were all filled with the Holy Ghost, and they spake the word of God with boldness.

Text: if the team qualifies also for the world league it is not participating in this tournament.

Correct capitalization: If the team qualifies also for the World League it is not participating in this tournament.

Text: confusing, now the picture is coming into focus, i can now start a plan with

Correct capitalization:
confusing, now the picture is coming into focus, I can now start a plan with