Answer:
Both A and B
Explanation:
I just used my brain and it all went together. E z sir pls give brainelest.
A 1000
Hope this helps
Sorry if it was wrong
Answer: The solid is a mixture
Explanation:
Here's the complete question:
If a solid contains some particles that melt at 50°C and other particles that melt at 110°C, what must be true about the solid?
A. The solid is an element.
B. The solid is a mixture.
C. The solid is a pure substance.
D. The solid has three boiling points.
It should be noted that an element consist of an atom but in this scenario, there are different particles that also have different melting points. Therefore, it's not an element, but rather a mixture.
Also, the solid in this case is not a pure substance and doesn't have three boiling points.
Therefore, the correct option is B.
This can select for resistant mosquitoes. After a couple of years, the population is entirely resistant to the insecticides you used. The insecticides may also kill off the beneficial insects (like pollinators e.g. bees) or the predator insects that ate the mosquitoes. Bioaccumulation and biomagnification in the food chain can lead to unintended deaths of high-level predators, e.g. DDT leading to deaths of eagles and falcons. I hope this is correct.
B. Intercropping
Explanation: I personally thought that it just made sense because the prefix inter means to combine, but when I looked up intercropping it showed the definition similar to the one shown in the photo. I also looked up all the others to be completely sure and none of the others have a definition close to the one shown.
