what is the answer for this question
Answers
Answer:
17.) i.Natural satellite - A small or secondary planet which revolves around a larger one. Artificial satellite - A man-made object placed (or designed to be placed) in orbit around an astronomical body (usu. the earth).
ii.Artificial satellites are used to study the Earth, other planets, to help us communicate, and even to observe the distant Universe. Satellites can even have people in them, like the International Space Station and the Space Shuttle. The first artificial satellite was the Soviet Sputnik 1 mission, launched in 1957.
iii.Following are the advantages of Satellite Communication: ➨It is used for mobile and wireless communication applications independent of location. ➨It covers wide area of the earth hence entire country or region can be covered with just one satellite. ➨It provides wider bandwidth based on SCPC or MCPC allocation types.
iv. ISRO stands for Indian Space Research Organization.
18..Signs. Signs of food spoilage may include an appearance different from the food in its fresh form, such as a change in color, a change in texture, an unpleasant odour, or an undesirable taste. The item may become softer than normal. If mold occurs, it is often visible externally on the item.
Mark as Bainliest