Iron filing are attracted by magnet. This is a physical property of iron but not of most other materials including sand. How could you use this difference in physical properties to separate a mixture of iron filing and sand

the backbone of the dna and rna compound is sugar phosphate.

they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

explanation:

1. the energy lost to disorder metabolism     -entropy

2. related to or possessing motion potential     -kinetic

3. all of the chemical reactions in an organism required for maintenance of the processes of life entropy     -metabolism

4. possible; ability to go into action or perform work kinetic     -potential

5. the study of energy and its transformations thermodynamics     -thermodynamics