Answer: C
Explanation: Really hope I can help!
Answer:
If we do nothing, the world will become significantly less habitable. ... Scientists have studied global warming for more than 100 years. ... The cumulative effect is to raise the planet's temperature. ... Scientists have taken detailed measurements of carbon dioxide (CO2) levels since the late 1950s
Explanation:
Because it is more accurate, faster, and cheaper than useing lead weights on a line.
I believe it is due to the water and the flora/ Fauna in the area.
Emmm sorry but where is your option xd