A = piR^2
a = pi × (8÷2)^2
a = pi × 4^2
a = pi × 16
a =50.27ft^2
To solve this question, think about which one of these options is a DIRECT effect of sea levels rising.
Choice A: If sea levels rise, they would start to cover up land that's at sea level, areas like beaches or coastal cities for example.
Choice B: Fossil fuels cause global warming. This is about the effects of global warming, not the causes.
Choice C: Not relevant. It doesn't mention alternative energy at all in this.
Choice D: Again, effects, not causes (see Choice B explanation).
The correct answer is... CHOICE A
Answer: put 2 in front of NaOH and 2 also in front of H2O
Explanation: 2NaOH + H2CO3 —> Na2CO3 + 2H2O
Spinning top, moving car, and rolling ball have kinetic energy I believe