During an experiment, which factors are observed and measured

This is a new idea, more effective device or process.this an be viewed as the application of better solutions that meet new requirements, inarticulated needs, or existing market needs. what's the term?

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?

How does secondary succession differ from primary succession?