Fact 1: Population size influences the chances of a species surviving. Fact 2: Estuaries are critical for the survival of many species. Given the two facts above, estuaries allow for appropriate what for a species?

OPT:
[1]. sunlight
[2]. weather
[3]. reusing materials
[4]. wind
[5]. population size
[6]. Quality of life
[7]. root growth
[8]. recovery
Answer:
[5].