What factor is most likely responsible for the long-term trend in europe's population growth? a. shorter life excpectancyb. fewer birthsc. higher infant mortalityd. births that exceed replacemtn-level fertility

The correct answer is option B, that is, fewer births.  

Aging of Europe also called greying of Europe, refers to a demographic process in Europe featured by a reduction in fertility, higher life expectancy, and a decrease in mortality rate among the European populations. Higher life expectancy and low birth rates donate to the modification of Europe's population pyramid shape.  

The most substantial modification is the transformation towards a much older population composition, leading to a reduction in the ratio of the working age, while the number of the retired population enhances.  

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a