Answer: The answer is Biosphere!
Explanation:
The biosphere is the system that serves as the interface between other spheres.
Https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjascq6vOLM...
You will find the information you need here. :3 Good luck!
(Says I have to cite my sources so here goes: I just copy/pasted your question into Google lol)
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:
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.
