Answer:
The correct answer is option C. "The magnetic field of earth keeps changing because of the suns activity"
Explanation:
The magnetic field of Earth is not a steady force, and is affected by external forces such as the suns activity, particularly during strong solar/geomagnetic storms. The changes in the magnetic field of Earth explains why the auroras Are sometimes seen at northern Ohio. The auroras are created by energetic electrically charged particles accelerating along the magnetic field, if the location of the magnetic filed changes, the location of the auroras change as well.
Answer: A cactus has needles to prevent animals from eating the water out from it.
Explanation:
Answer:
d
The salinity of ocean water can be determined by measuring the conductivity of the water. ... The electric current is flowed through the water and as we know salt water is a good conductor of electricity it will pass the current fast. Using this technique oceanographers determine the salinity of water
Explanation: