Which of the following are types of thematic maps?
Check all that apply.
special-purpose maps
physical maps
choropleth maps
dot-density maps
political map
Answer:
Choropleth map
Dot-density map
Explanation:
A thematic map is a type of map that highlights a particular topic such as the average distribution of rainfall in a place and they are quite different from general reference maps because they do not show natural features of an area.
The types of thematic maps from the options given are <u>choropleth map and dot-density map</u>
Answer:
My name's Bonita.
You might be like... "Don't expose that" but who cares.
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 .
