Lack of economic development!!! i hope that helps you
Answer:
erosion is caused by wind water and gravity
Explanation:
it's rocks or concrete breaking down very slowly it takes years
NGOs have the greatest influence on environmental policy, women's issues, development and human rights. In these issue areas, they use the media and lobbying of individual governments to set the U.N.'s agenda; they lobby in New York and Geneva to obtain U.N. ... provides three monitoring mechanisms for NGOs to use.
Answer:
a) calculating the concentration at which 50% of the test organisms of a particular species die
Explanation:
Bioassays -
<u>Bioassays is an analytical method to assess the effect of marine pollutant on the organism by estimating the concentration at which 50% of the test organisms die after exposing the test organisms for a specified time.</u>
It can be done by quantitative or by qualitative experiment , or direct or indirect .
It is used to detect the biological hazards or give the quality assessment of the mixture .
It is also used for the monitoring the quality of water .
