Biodiversity is the variation of plants and animal on earth. Biodiversity involves all creatures in the ecosystem. it consist both terrestrial and aquatic creatures. The richness in variability of life contribute immensely to the ecosystem because each life plays a major and vital role to the ecosystem.
Increased population will invariably affects the biodiversity of a region because more food and other raw material will be source thereby altering the well being of other species in the ecosystem that depend on the raw material.
Example the population explosion of human has bring about increase in fuel consumption. This will cause more involvement of expertise to drill the crude oil to meet the population demand. Through active crude exploration more life in the marine are affected causing unbalance in biodiversity. That is the biodiversity of aquatic life will be reduced when more crude oil find it way to the sea.
It´s because of the lack of the gravity factor that´s present on the surface of Earth. This makes bodies and objects so light and they practically float in the station´s interior. Earth´s gravity is simply weaker the further you are from it.