Reducing toxic hazardous waste
can be done through bioremediation. An example is composting. Composting is the
use of microorganisms in the presence of oxygen to degrade the toxic wastes
present in the soil. It may be placed in a container with holes on it and can
be rotated to allow oxygen to interact with the microorganisms and degrade the
wastes. Superfund is a program from EPA (Environmental Protection
Agency) that helps in cleaning some of the US’s most contaminated land and
responding to environmental emergencies, oil spills and natural disasters. One
of its targets this coming June 8 is the Portland Harbor.
Answer: Racial groups
Explanation:
A race is based on an idea that people are divided into distinct groups based on their shared inherited physical features and shared social qualities. It is also based on visual characteristics such as skin color , cranial and facial features or even type of hair
This is an example of negative reinforcement.
Her mother scolded her every time Jane bit her nails - so Jane learned that every time she bites her nails, she is going to be scolded sternly by her mother. In order to avoid that, she stopped biting her nails, and thus the reinforcement was successful.
1.
The Columbian Exchange began in the 16th century.
2.
potatoes
3.
livestock
