I believe, those two materials were bamboo and carbonized thread
After thousands of experiments, Edison realized that filaments made from carbonized bamboo could alst for more than 1200 hours. (while others probably only last for several days)
This invention made Edison really rich after he mass produce it in late 1800s
Answer:
So organisations make commitments to major projects, but cannot always deliver what was expected and, more worryingly, cannot determine how much value they are getting from their investment. ... Poorly defined project scope. Inadequate risk management. Failure to identify key assumptions.
Explanation:
Answer:
A) Continued enrollment in a weight-loss program
Explanation:
Dependent variable: The variable that is being tested or measured in an experiment. The researchers focus on how changes in the independent variable leads to the changes in the dependent variable. The dependent variable is the variable, what you are trying to measure in an experiment and this is what gets affected during the experiment. It depends on the independent variable (IV), as it responds to IV.