Which of the following is a good scientific hypothesis?
a) gasoline is made up of particles that can not be seen.

b) if a plant is give less oxygen than what is present in the air, the plant will grow more slowly

c) people who smoke cough more often.

d) more people carry laptops at the airport on tuesdays then on saturdays.

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

In the presence of oxygen, glycolysis is followed a. the krebs cycle b. lactic acid fermentation c. alcoholic fermentation d. photosynthesis

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.