Fertility of their people, infertility of their land.
earthquake
the difference is that a pull factor is pulling you to move or go there and a push factor is pushing you to leave the place
push factor
they went to your house :]
push
do you mean from Mexicans or Mexico? Mexico has a very poor economy and rampant crime. this would push Mexicans further north to America. the push factor America has a high standard of living and a large average wage compared to Mexico. America also has a high dollar and cheap food. the pull factor
push pull factor for norway
gender
A good sentence would be: Political and Religious Persecution was a push factor between 1866 and 1915.
push factor
the push factor is for scandinavians.
Worms make their heads pointy, and push into the earth. Then they expand their heads to make the hole wider. They expand a section of their body to grip push against the wall of the hole while they make their heads pointy again and push further.