Why do scientists use the international system of units (si)? (1 point) because the si is based on the metric system because the tools scientists use only measure in si units so they can communicate their results without confusion so all scientists are guaranteed to come up with the same measurements?

Consider a file currently consisting of 200 blocks. assume that the file control block (and the index block in the case of indexed allocation) is already in memory. calculate how many disk i/o operations are required for contiguous, linked, and indexed (single-level) allocation strategies, for each of the conditions listed below. in the contiguous-allocation case, assume that there is not room to grow at the beginning but there is room to grow at the end. also assume that the block information to be added is stored in memory.