What types of energy were people living in the area now
called California using 500 years...
What types of energy were people living in the area now
called California using 500 years ago?
What are the “three Rs” of waste reduction, which is the
most efficient and important? Which takes the most
energy?
Solutions
Expert Solution
500 years ago people living in the area now called California
used the alternative energy sources like solar energy, wind energy
.
The three Rs of waste reduction are - Reduce, Reuse and
Recycle.To recycle,reduce and reuse provides environmentally
-friendly ways to reduce negative impact of growing waste on the
natural environment.
REDUCE refers to the reduction of waste during
production processes.
REUSE also helps reduce waste by using items
multiple times before discarding them,if at all.
RECYCLE means to take a used material and
remanufacture it to sell new.
Out of the three Rs of waste reduction the most efficient and
important is to reduce the waste.Waste reduction and waste
prevention is all about reducing waste at the source.In terms of
waste managment ,it is always the best option.Reducing the amount
of waste you produce is the best way to help the environment.
The process of changing the waste and non-useable materials
into potentially useful material requires lot of energy.It is the
key component of modern waste reduction procedure.The recycling
reduces the consumption of raw materials and energy usage.It
reduces the air and water pollution by reducing the need of
conventional waste disposal.The process of waste recycling usually
involves collecting and processing those materials ,which would
otherwise be discarded as trash,and turning them new
product.Therefore out of the three Rs -Recycling takes the most
energy.
2. Now people are living and working much longer than
they used to in the developed world. This demographic changes might
be one reason currently we have
a. low unemployment rate.
b. low unemployment rate.
c. high unemployment rate.
d. low output rate.
e. high inflation rate.
Forty randomly selected people were asked the number of people
living in their home. Let X = the
number of people living in one home. The results are as
follows:
x
frequency
relative frequency
1
2
2
5
3
8
4
12
5
12
6
0
7
1
Complete the frequency table.
Find the sample mean ?
c. Find the sample standard deviation, s. What does this tell us
about the data?
d. Construct a histogram of the data....
Imagine that 30 years from now, the majority of citizens in
California, Texas, Arizona, and New Mexico vote to secede from the
US and create a new, mainly Spanish-speaking country. Under what
conditions, if any, should the US permit these four states to
secede? Under what conditions, if any, should the US determine to
retain these territories through military force is necessary?
Please answer both questions. Thank you.
There were 49.7 million people with some type of long-lasting
condition or disability living in the United States in 2000. This
represented 19.3 percent of the majority of civilians aged five and
over (http://factfinder.census.gov). A sample of 1000 persons is
selected at random. Use normal approximation. Round the answers to
four decimal places (e.g. 98.7654).
(a) Approximate the probability that more than 201 persons in
the sample have a disability. (answer is not .274) round 4 decimal
plzzzzz on a...
70% of people who are 30 years old will be alive ten years from
now. In the random sample of 15 people, calculate the probability
that...
a) exactly 10 of them will be alive ten years from now
b) at least 9 will be alive ten years from now
c) at most 8 will be alive ten years from now
d) how many of them would you expect to be alive 10 years from
now
e) let X be the...
According to historian/Professor Ronald Takaki, the WWII years were
called the “Watershed years.” Please explain what he means and how
WWII affected the various APA communities.
in 500 words While in a grocery store taking
careful observations of the types of people who frequent the store,
the types and availability of the products available for purchase,
and the ease of finding both dominant culture (American/White
culture) and cultural grocery items. After the observation period,
the student should write a brief report that answers the following
questions: 1. What type of food or products were most plentiful in
the store? What types of food or products were...