The strength of the underlying geology, steepness of hillsides and faults in the Earth's crust which can potentially cause earthquakes are the geologic considerations during the identification of physically safe places for human habitation.
Geology basically deals with the study of the Earth and it finds a vital application in understanding the physical features of an area before it is inhabited by humans.
Human habitation on steep hillsides can be risky due to potential landslides and soil erosion which may occur due to rainfall or by rivers. It is also important to judge the strength of the underlying geology to ensure stability to the structures and buildings made to support habitation. The faults in the Earth's crust and the movement of the tectonic plates are responsible for causing Earthquakes. Seismic activity can lead to swaying of the structures and result in their instability which happens to risk human lives.
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Answer:
Serial dilution method
Explanation:
To make a dilution of 10-1 dilution, the culture containing the <em>E. coli</em> broth has to be diluted to make it as 0.1 dilution.
STEPS TO BE FOLLOWED:
- Take the given test tube with 2 ml of <em>E.coli</em> broth culture.
- Take another new test tube with 9 ml of saline solution or distilled water.
- From 2 ml of broth solution, take only 1 ml of culture and suspend in 9 ml of saline or distilled water.
- Now, 1 ml of culture is suspended in 9 ml of saline and the broth is suspended. This constitute 10-1 dilution
- If this 10-1 is again suspended in another 9 ml of water leads to 10-2 dilution factor.
- This methods can be used for both solid and liquid samples like soil or sewage.
Uses of serial dilution:
- Helps in determining the different species of organisms present in soil.
- Organisms (Bacteria) can be distinctly identified from each other since the organisms suspended count will be less when they are dilutes upto 10-10 dilution.
Lateral" would be the correct answer
Answer:
A
Explanation:
RNA uses uracyl instead of thymine in the sequence so A pairs with U instead of T
Producers or plants use the Sun's energy to make their own food.