Mostly their genetics, but malnutrition and other environmental stresses can also cause it.
Yes. They believe that the gene that makes giraffes tall will cause them to grow.
people grow so tall because maybe its in their genes
Nitrogen and Phosphorous.
It depends of the individual.
If the tree is really tall or can grow really tall it might fall on the house!
Genetics is the cause.
Zimbabwe actually makes cofees
Co2 sunlight and water. They form a sugar which makes it grow. Also to grow tall they would need a vascular system to support it
Pituitary
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To grow up ofcourse! Calsium makes human grow ♪(゚▽^*)ノ⌒☆
People have different growth rates, some may grow faster others may grow slower and it also depends on yr genetic makeup.Lets say if your parents are tall you might be tall to.there family.or they are a late bloomer or ( again ) they have a disease were they can't grow that much! think a little people!