Q9. What does the term "excavation" refer to in construction safety? (a) The process of removing debris from a construction site (b) The digging of trenches/foundation pits (c) The transportation of construction materials (d) A method to treat unstable slopes Q10. Which of the following is a safe practice for handling hazardous materials in construction? (a) Storing near heat sources (b) Storing near other hazardous materials (c) Using appropriate containers and labels (d) Storing near machinery Q11. Which of the following is a safe practice for operating heavy machinery in construction? (a) Operating with limited training (b) Ignoring safety signs (c) Inspect machinery before use (d) Multitasking while operating Q12. What is the purpose of a safety training program in construction? (a) To educate workers on construction techniques (b) To promote teamwork and collaboration (c) To enhance productivity and efficiency

If the demand side of a market holds a high level of market power, then the sellers ___ than they would otherwise are likely to sell at a lower price are likely to sell at a higher price will face higher switching costs will face lower switching costs

a) Is the following set of vectors in \( \mathbb{R}^{4} \) linearly dependent, if yes, write the first vector as a linear combination of the other vectors. \( S=\{(1,2,-3,1),(3,7,1,-2),(1,3,7,-4)\} \).

15 Multiple Choice 1 point Why are programs designed to educate people about the dangers of using tobacco products just as important as developing tobacco cessation programs? Educational programs alone are entough to eliminate tobacco use, if only everyone had access to such a program. Because educational programs are cheaper than cessation programs. Because educational programs have a larger impact on reducing the financial burden of healthcare. Because preventing the initiation of tobacco use is critical to public health. Clear my selection

When the internet was still slow and used mainly for browsing web pages, people frequently rented DVDs at local video stores. Netflix launched as a subscription service through which subscribers rented and returned DVDs through the mail. As internet speeds improved, the ability to purchase and download movies online emerged, and Netflix transformed from a mail DVD service to a streaning platform. By pivoting into streaming, Netflix successfully: limited the threat posed by potential substitutes in an emerging market. vertically integrated the production of DVDs. created a relationship-specific investment with internet service providers. eliminated the need to monitor for competitors entering through new distribution channels.

1. Transformar \( 100^{\circ} \mathrm{C} \) a K .