Sonia’s grandfather was not able to see clearly when he entered the house after returning from his walk on a bright sunny day. He was about to hit the chair when sonia held him and guided him to a nearby sofa. (a)what could be the reason for sonia’s grandfather not being able to see clearly on entering the house ? (b)what value did sonia show?.

Of four agents alpha, beta, gamma anddelta, three have to be sent together on amission. if alpha and beta cannot gotogether, beta and gamma cannot go togetherand gamma and delta cannot go together,then which of the following holds? 1. any three agents can be sent.2. alpha, delta and any one out of beta andv gamma can be sent.3. beta, gamma and any one out of alphaand delta can be sent.4. the mission is impossible.

Igot a 80% on my final to os ya take these points in return

How do we determine if they are made with matter