Answer:
PLASTIC
EXAMPLE:heating food in plastic should be avoided.
Explanation:
Answer:
I believe the answer is "The city is covered in snow"
Explanation:
the others aren't current conditions and pretty irrelevant
Answer:
Ourselves, Themselves, Yourselves
Explanation:
All of these are pronouns with 'selves'
Answer:(social security)-Social security is the protection that a society provides to individuals and households to ensure access to health care and to guarantee income security, particularly in cases of old age, unemployment, sickness, invalidity, work injury, maternity or loss of a breadwinner. (personal savings)-he money that a person, rather than a business or organization, keeps in an account in a bank or similar financial organization: They introduced tax breaks which made many personal savings tax-free. (individual retirement account)-An individual retirement account (IRA) is a tax-advantaged investing tool that individuals use to earmark funds for retirement savings. There are several types of IRAs. Traditional IRAs. Roth IRAs. SEP IRAs (401k investments)-With a 401(k), you control how your money is invested. Most plans offer a spread of mutual funds composed of stocks, bonds, and money market investments. The most popular option tends to be target-date funds, a combination of stocks and bonds that gradually become more conservative as you reach retirement.
Explanation:
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
