(c) The countries of south America and Africa
Answer:
Probably because it either has inappropiate language or has been traced back to a test.
Answer:
Because sun is a 'Star' and other planets are planets and sun is the source of energy for all of the planets.
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 .
Answer:
THE UNITED STATES IS A PLACE TO BE SAFE,SMELL THE AIR,AND GREAT ANIMALS TO SAVE
