Answer:
constructing dams and building desalination plants help reduce the effects of droughts
Explanation:
Answer:
80 dB
Explanation:
Sound intensity is inversely proportional to the square of the distance traveled by the sound.
Thus;
r1^2 divide by r2^2 = L2divideL1
where r= distance (m)
L= sound intensity (decibal dB)
8squared divide by 4 squared = L2 divide 20 dB
L2 = 4 × 20
L2= 80 dB
This means that the sound is increased from 20 dB to 80 dB.
Carbohydrates, Lipids, Proteins and Nucleic Acids
The placenta provides oxygen to the baby and excretes carbon dioxide into your bloodstream.
meaning that the baby does not simply absorb oxygen from a women's bloodstream. blood and gas transports occur through the placenta, also the placenta delivers oxygen-rich blood through the umbilical vein not artery
hope this helps
Salmon are predators to shrimp.
This makes sense because a predator is an animal that hunts another animal to survive. Since salmon feed on shrimp, they must be a predator.
Additionally, we can eliminate the other possibilities by process of elimination:
-B is incorrect as a parasite is an organism that lives inside of another organism. Since salmon do not live inside of shrimp, this doesn't make sense.
-C is incorrect because a host is an organism that a parasite lives inside of. Since shrimp do not live inside of salmon, this also can be removed.
-D is incorrect because prey is an animal that is eaten by another animal. Since shrimp to not eat salmon, this can also be eliminated.
Therefore, A is our answer.
Hope this helps! :)
