It b I think but I could be wrong
"E-Waste" is a term used for discarded computers, mobile phones, office electronic equipment, television sets, entertainment device electronics, and refrigerators. It refers to electronics (electronics waste) which are intended for reuse, resale, recycling, salvage or disposal are also considered as e-waste. These had become an issue, especially in the 21st century because of the lead<span>, mercury, and cadmium that are contained in the electronics, are hazardous. They are hazardous because they can release dangerous toxins into our air and water, or when burned or deposited in landfills improperly. </span>
I have some suggestions for John:
- he can order new machines; the old ones are obviously causing problems if they need to be repaired all the time,
-he can organize trainings for his employees about how to repair the machines so that they don't have to ask him every time.
Answer:
cross-sectional study
Explanation:
Dr. Milano compares the performance of a group of 20-year-olds, a group of 45-year-olds, and a group of 70-year-olds on several tests of fluid intelligence and several tests of crystallized intelligence. Dr. Milano's investigation BEST exemplifies a <u>cross-sectional study</u>. A cross-sectional study is a type of observational study that analyzes data from a population, or a representative subset, at a specific point in time, it involves the use of different set of people who differ in the trait of interest. For example, the effect of age on intelligence level will involve the selection of subjects across the cross-section of ages of interest.
Is this something to solve or a joke