State any two approaches to deal with global warming and climate change

We can contribute to reducing global warming and climate change with our personal actions. In US and Canada individuals release over 10,000 pounds of carbon dioxide per person every year.We can help immediately by becoming more energy efficient. Reducing our use of oil, gasoline and coal also sets an example for others to follow. We can -                                          -Reduce electricity usage around the home                                                      -Improve vehicle fuel-efficiency                                                                         -Conserve energy in the home and yard

the value of the 4 in the hundreds place is 400 while the value of th e 4 in the tens place is 40

400 is way bigger than 40.