According to Pi, a zookeeper will know he or she has created a healthy environment for the animals WHEN THE ANIMALS REPRODUCE.
For animals to reproduce and give birth to young ones, many things has to be in place, such as suitable partners, right environment, right food, etc. Animals naturally reproduce when the environment is favorable unto them. Thus, reproduction of animals in the zoo shows that the right environment has been created for the animals.
Beowulf is an Old English epic story consisting of 3,182 alliterative lines. It may be the oldest surviving long story in Old English and is commonly cited as one of the most important works of Old English literature i dont think that well help but i hope it does
Some industrial users are required to pretreat their waste water prior to discharge to the sewer.
