Answer:
they get rid of all the bacteria in the water
Explanation:
Oxygen belongs to the Chalcogens family of elements. Oxygen is found in Group 16 or VIA of the periodic table, along with the elements sulphur, selenium, polonium and tellurium.
Answer:
The direction of motion is changing, so the car is accelerating. By Newton's second law, an unbalanced force must be acting on the car if it is accelerating.
Explanation:
It’s an important question because the road to a successful career in science – as with technology, engineering and mathematics, the other STEM fields – can be challenging, often requiring a Ph.D. or other postgraduate training. And once in their fields, there can be political and economic pressures with which to contend. The Bureau of Labor Statistics projects workforce shortfalls for many science fields, though the projected needs differ across the life, physical and natural sciences.
