How does migration affect the country the migrant is leaving? The country's economy grows. The country's birth rate increases. The country loses the valuable resources of the migrant's knowledge and skills. The population of the country increases.

Which statement best explains the relationship between an area's geography and the temperature of its surface water? areas at low altitudes have the warmest water because they receive the most direct sunlight. areas at low altitudes have the warmest water because they have the least change in temperature throughout the year. areas at high latitudes have the warmest water because their days are the longest. areas at high latitudes have the warmest water because they have the longest seasons.