Module 2 Heat Transfer Quiz

Explanation
Convection currents are ocean currents that disperse heat all over the world. Convection refers to the process of heat transfer through the movement of fluid or gas. In the case of ocean currents, warm water near the equator rises and moves towards the poles, while cold water near the poles sinks and moves towards the equator. This continuous movement of water helps distribute heat and regulate global temperatures. Therefore, convection currents are responsible for dispersing heat throughout the world's oceans.

Explanation
Dogs have a higher range of hearing compared to humans. They can hear sounds at higher frequencies than we can. Therefore, a dog hears high-pitched sounds better than low or medium-pitched sounds.

Explanation
The term "renewable resource" refers to a resource that can be used repeatedly without being depleted or permanently damaged. This means that it can be utilized and then replenished naturally over time, ensuring its availability for future use. Examples of renewable resources include solar energy, wind power, and water.

Explanation
Renewable resources are those that can be replenished naturally or are continuously available. Our bodies, water, sun, and wind are considered renewable resources because they are naturally occurring and can be used without depleting their supply. Our bodies can regenerate and provide energy, water can be recycled through the water cycle, the sun provides solar energy, and wind can be harnessed for wind power. However, electricity, gasoline, oil, and coal are not renewable resources as they are derived from finite sources and their extraction or production processes are not sustainable in the long term.

Explanation
The question asks for alternative energy sources to replace fossil fuels. The options given are Sun, wind, water, nuclear, and gasoline. Among these options, Sun, wind, water, and nuclear are all viable alternative energy sources as they are renewable and have the potential to generate electricity without relying on fossil fuels. Gasoline, on the other hand, is not an alternative energy source as it is derived from fossil fuels itself.