How can new renewable and/or sustainable energy sources (for example, solar power) us build a secure energy future?

Renewable and/or sustainable energy sources help us build a secure energy future because it will not pollute our world as much, and renewable resources are renewable. Hope I helped ya!!! xD

It's very very unlikely that we will run out of sun, so we can use it to create power that will never run out. Fossil fuels for example may run out meaning it is an unsustainable energy source and could lead to energy shortages if we do not have other renewable supplies.

The freezing point of the ice is lowered because of the rock salt which then allows the ice to observe heat from the ice cream mixture without it melting.