Answer: between the second and
third finger
The correct method of removing
a glass stopper is to grasp it between the second and third finger with the
help of the thumb. If the glass stopper is stuck, you can use the tap method by
using many gentle tap and keep on turning the flask. Another technique is to put
oil or use a flame to expose it to heat.
Invasive exotic species are species that interfiere with the natural food chain and are usually foreign
The unit is the Watt. S.I. unit = W
