on school a teacher told me that however the population of the earth is growing earth isn't getting heavier.
Is this true? And why? - sijmon van abbema (age 14) Schettens, Friesland, Nederland
A:
Sure- When I gain weight, it comes from food I eat. More weight for me means less weight for the rest of the world. The same goes for our species as a whole.
Mike W.
(published on 11/10/2011)
Follow-Up #1: asteroid weight gain
Q:
The only way for the Earth to get heavier is from asteroid impacts. - Anonymous
