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 .
Sand, rocks, and sediment could be carried(erosion) by wind and water
Answer:
geyser
Explanation:
The water feature shown by the image is a geyser.
Geyser are natural feature that ejects a column of hot water, steam or vapor into the atmosphere.
- Geysers are usually formed in areas of active volcanic and tectonic activities.
- When surface water comes in contact with a very hot body in formations, they become pressurized and rises up.
- They then become forcefully ejected through rock cavities and joints.
- This forced ejection leads to a head of water rising above the surrounding area.
Answer:The largest ocean in the world - the Pacific Ocean - is ten times bigger than the smallest one - the Arctic Ocean.
Explanation:
Answer:
Lol, the answer is English hope this helps can I have brainly?:)
Explanation:
