It would be completely false to state that a <span>virtual image can sometimes be seen on a screen; it just depends on the situation. A virtual image can never be seen on a screen. The correct option among the two options that are given in the question is the second option. I hope the answer has come to your help.</span>
It depends on the environment around you ... the number and size of
the masses around you, and your distance from their center of mass.
If you happen to be on the surface of the Earth, then
g = 9.8 m/s²
or
g = 9.8 newton/kilogram .
It's different on other planets. Be sure to look it up
before you leave, so you'll know what to expect.
There are several approaches. The most favourable one (in my opinion) is this one:
1. Asking a question
2. Doing a research (how to answer this question)
3. Creating a hypothesis (NOT a thesis!)
4. Experimenting (to prove the hypothesis)
5. Analysing results from the experiment
6. Writing a thesis
I am not 100% sure on this, but I would have to say A or D. I am sorry I could not give you a definitive answer but there you go!