The number of people that move in and out of a location or a particular place in search for job or better lively hood is measured by the migration rate, which is different for different counties and nations and thus this is an indicator of the population dynamics and hence, is used when estimating the population growth of a nation.
Most of these migration patterns follows rural to urban migration and urban to urban migration, dominated by the pull and the push factors.
The gases absorb energy, which slows or prevents the loss of heat into space. They act like a kind of blanket, keeping heat in and radiating it back downwards and raising the temperature of the Earth.
Ethiopia has taken bold leadership in climate action. As part of the Green Legacy Initiative, which was launched in 2019, 20 billion trees will be planted across the country over four years.
