The answer is The Doppler Effect. It is named after the Austrian physicist Christian Doppler, who described the phenomenon in 1842.
The correct option is D.
The Endangered Specie Act was enacted in 1973. It is an environmental law which provides for the conservation of species that are endangered or threatened and the preservation of the ecosystem in which they live. The law prohibit the catching and killing of endangered species.
Bee colonies are currently weaker than ever, making bees unable to carry pollin. The carrying capacity of the bees are <em>decreasing</em> because the population of bees are also decreasing.
Per calendar year (365 days) there are 31536000 seconds
