Which of the following is a chemical reaction? 1.breaking a glass pane 2.freezing water 3.digestion of food 4.cutting down a tree 5.evaporation of rubbing alcohol

Here's one way to follow the scientific method. place the missing steps in the correct position in the process.

Iguanas need to live in a habitat that is very warm, so the pet store warms their enclosures with "basking lights" which act as an artificial sun. describe how the three methods of thermal energy transfer may take place within the iguana's enclosure.

What is the inability of an individual or a society to achieve a minimum standard of living known as ?