Question

1. choose the best answer.

the scientific community uses the ______ system where the freezing point of water is 273.2*
kelvin
celsius
fahrenheit
joules

1. choose the best answer.

______ power plants draw thermal energy from the interior of the earths surface.
nuclear
chemical
mechanical
geothermal

Explanation:

• For question 10: The Kelvin scale is the scientific temperature scale. The freezing point of water is \(273.15\) K (approx \(273.2\) K). Celsius has \(0^{\circ}C\) as the freezing point of water, Fahrenheit has \(32^{\circ}F\), and Joules is a unit of energy.
• For question 11: Geothermal power plants utilize the heat from the Earth's interior. Nuclear power plants use nuclear reactions, chemical power plants rely on chemical reactions (like burning fossil fuels), and mechanical is a broad term not specific to drawing thermal energy from Earth's interior.

Answer:

1. Kelvin
2. Geothermal