The right answer is D.
Intermolecular forces lead to the assembly of microscopic systems. They are responsible for the cohesion of matter in most macroscopic phases. These are weak forces compared to covalent bond strengths. They do not modify the nature of the molecular species and only influence their mode of assembly. The most well-known intermolecular bonds are the Van der Waals bond and the hydrogen bond.
The greater the intermolecular forces, the more the aspect of the element will tend to be more condensed (gas <liquid <solid).
Answer/Explanation:
Pollution during the industrial revolution caused trees to become covered with soot, making them darker. This dark appearance meant that the peppered moth, which usually had a light colour, was clearly visible against the tree. This meant it was easier for predators to identify. As a result, their numbers decreased because they were an easier target.
However, there was also a rarer form of the moth, which was dark in colour. These were initially very rare. However, because of the change in the tree colour owing to the industrial revolution, these moths were better suited to the environment, as they were more camouflaged against the dark tree. This meant it was easier for them to avoid predators, and so they were more likely to survive to reproductive age and pass on the genes that produce the dark colour. This meant that the dark moths increased in number.
Answer:
The statement is true
Explanation:
Asepsis means the absence of infection-causing germs and surgical asepsis means the absence of all the microorganisms or spores in any invasive process.
Surgical asepsis is usually used medical procedure when a foreign object is used to insert into the patient body which can open a transmission route of infection causing germs into the patient body. For example, using a catheter in patients.
So surgical asepsis is important to avoid any type of infection in the patient during his treatment. So the statement is true.
Ok i just took this exam the above answer was wrong the real answer should be: More investigations must be completed.
Answer:
Question 4.
1. is sea floor spreading
2 is volcano
3. is subduction
Question 3.
1. is mountain building
2. is plate tectonics
3. is ocean basin
Explanation:
this is 8th grade science and im in 10th. its easy
