Answer:
new technology for freezing food
Explanation:
The graph shows a decline in demand for meals served between 2007 and 2008.
People can feed themselves in two ways, buying frozen food or buying food served at restaurants. In this way, we can say that these two forms of feeding are substitutive. If new technology allows frozen food to last longer, people can substitute meals served with frozen meals. This explains the decrease in demand for meals served, seen through the shift to the left of the demand curve on the chart, from 2007 to 2008.
The best traction and friction for drivers are found on dry, concrete roads, where they also require less stopping space.
<h3>
Why is the best friction found on a dry concrete road?</h3>
Because of its flat surface, a dry concrete road has the best friction. This leads to better grip and friction. Because loose gravel, icy or snowy roads will be slippery and reduce friction, a dirt road will have the least amount of friction. Asphalt is more likely to be slippery in the rain and light snow than concrete is. Compared to asphalt or concrete, ice accumulates more gradually on a gravel road. The vehicle may slide or skid when driving on dry sand since it has less traction.
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Steve's psychiatrist wants to know about Steve's past marijuana intake, because smoking marijuana could change the way genes are expressed. The way Steve says "It's just genetic—nothing could have changed it." means that he is afraid and does not to talk about his past. Studies have revealed that cannabinoids induce chromosome aberrations in both in vivo and in vitro studies.
The answer would be : how to produce. When the markets or government make a decision about how to most efficiently convert their resources into goods and services, they answer the question of how to produce, such as how many labors that they're using, or what kind of technology that would increase their production process.
