Blood pressure is produced because you have pressure in your heart
Answer:
Option C, As elevation increases, air pressure decreases, molecules spread out, and air temperature cools.
Explanation:
As we move towards the sky the number of air particles reduces and hence its density also reduces. Due to lesser number of particles the pressure exerted by air also reduces at high elevations.
As per the gas law
Where P is the pressure, V is the volume, n is the number of mole, R is the gas constant and T is the temperature.
Gas law states that if volume is constant, the relation between temperature and pressure is proportional.
Thus, if pressure is reducing the temperature will also reduce.
Hence, option C is correct
Answer: b. Species richness, species abundance, and species evenness.
Explanation:
The species diversity index can be define as the measure of diversity of species. This takes into account for the number of species present in an area, also the relative abundance of species in an area. If the species richness increases, evenness of the species also increases and the diversity of species also increases.