What are POPs?
POPs are 1
organic pollutants. An example of a POP is 2 .
1. persistent
1.short-lived
1.permanent
2. sulfur dioxide
2.nitrogen oxide
2.DDT

What is called the "building block" of life?

7. describe two strategies that parents can use to cope with stress. 8. describe the three types of childcare available to families. 9. what can parents do to be more involved in their children's education at home and at school? 10. which factors should a parent consider when choosing a childcare option?

Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.