Answers

2014-11-18T18:55:24+08:00
The bad effect of having a population growth is that your needs are gonna be bigger
the bad effect of water condition is that you cannot have clean water to drinkĀ 
the bad effect of changing in weather is that the season of harvesting of plant will be delayed and the plants can die
the bad effect of change in shape of land is that some the land can be small
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