Answer: Option (a) is correct
Explanation:
Biological anthropologist are the people who study behaviors and biological characteristic of humans residues,ancient resources etc.
According to the question, biological anthropologist study the mechanism of environment adaption, evolution, history of development and existence, variation and origin of human beings.
Other options are incorrect because genes effect, makeup of biology and environment impact are not the factors that defines humans as per concept of anthropologist.Thus, the correct option is option(a)
Answer: You mean industrial, because indusustrilal is not even in the english dictionary?
if so, then here is one. Do you live in an industrial area?
Explanation:
Answer:Remove the requirement to perform in front of the class since students seems to enjoy and perform well in pairs
Explanation:
According to Skinner in operant conditioning , negative reinforcement is a reinforcement in which we remove or stop an aversive stimulus in order to enforce or strengthen a behavior or response. Aversive stimuli is that stimuli which has a tendency of making us physcally or psychologically uncomfortable.
When an aversive stimuli is removed then our behavior has been negatively reinforced. An action is taken in advance in order to prevent a negative outcome.
Desertification has become a major issue in Africa,
specifically in sub-Saharan Africa. The area most at risk is the Sahel, the area that borders the
southern edge of the Sahara. This region serves as a “transition” between the
desert and savanna the
grasslands that dominate much of sub-Saharan Africa. The centrally-located tropical rainforest region is
not immediately affected by the threat of desertification.
The term
“desertification” refers to the growing size of deserts, but in this case the Sahara. There are many causes of
desertification: some are naturally occurring while others are caused by
humans. The most common natural cause is drought,
which is something you might associate with the desert itself. However, this
situation can cause great harm to soil, making it unusable and causing<span> erosion</span> by wind or human
activity.
As far as human activity goes, there are number of them that cause
desertification. Cattle ranching- a common occupation in much of rural Africa-
can cause overgrazing.
Additionally, the need for more and more food to feed people in and outside of
Africa results in over-farming.
In both cases, these practices cause soil to become more exposed to the sun and the increasingly dry weather. As the
soil loses nutrients and is loosened by other forces, it ceases to be able to
grow any plant life, creating a situation in which the desert may slowly begin
to creep into an area.
The effects of desertification can be catastrophic. Starvation is the most common
effect, and one that is not quickly or easily solved. Soil that is unusable can
take many generations to replenish.
Similarly, ending or slowing down desertification is cannot be done with a
single effort. Military
campaigns are being undertaken in Africa, encouraging the use of beneficial
practices such as crop rotation
and smarter ranching
practices in order to prevent further soil depletion.
Safety needs. In Marlow's hierarchy safety needs relates to the need of security and protection.
