Most of the Natural gas in the atmosphere results from the activity of producer organisms
Answer:
I would have to go with the first one.
Explanation:
May I get brainliest please?
By using a woodstove, the kilograms of wood required to
heat a room to 20°C is 3 kg
<h3>Efficiency of a machine</h3>
- Efficiency is the percent of work put into a machine (input work) to that of the work done by the machine (output work).
- Efficiency of a machine is always less than 100% because the output work is always less than the input work because some of the input work is used to overcome friction.
Efficiency = work output/work input * 100%
Efficiency of fireplaces = 15%
Amount of food required to heat a room to 20°C = 15 kg
Assuming efficiency of 100%, amount of wood required will be X kg:
X = 15% * 15 kg
X = 2.25 Kg
By switching to woodstoves which are 75% efficient, amount of wood required will be Y kg:
Y = 2.25 kg / 75%
Y = 3 kg
Therefore, by using a woodstove, the kilograms of wood required to
heat a room to 20°C is 3 kg
Learn more about efficiency of machines at: brainly.com/question/3617034
Answer:
Supermarkets are often cited as among the types of businesses with the lowest profit margins. It's true. Grocery store profit margins typically range from 1 percent to 3 percent, depending on the items. Grocery stores make their money on volume. They may not make much on any one item, but it's the rare shopper who only buys one item. That's why the store kindly provides big shopping carts for their customers. With not much additional effort, the grocery store sells you 20 items or more, making much more profit than they would have if you had bought only one item.Explanation:
Answer:
Yes it would be legal
Explanation:
i asked my dad he is a police officer
