Do you think companies should be required to disclose ingredients in their chemicals if there are environmental concerns. explain why or why not. use at least three pieces of evidence. to further explain: based on the articles, we know that companies are not legally required to tell us what's in their products. do you think that is okay? do you think they should have to tell us what's in their products if it could be harmful to people or animals?

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.