Your Questions About Green Living

Sandy asks…

help on my construction?

Construction information sheet for:
Identifying and describing developments in the use of sustainable materials

1.The influence of sustainable materials on the design process.
Describe what is meant by the word sustainability. Why do we need to make greater use of sustainable materials? What influence do they have on the design of buildings?

2.Recycling, reclamation, reusability (including packaging).
What does it each term mean? Link to Harraton site.

3.Salvage, refurbished or remanufactured materials
What does each term mean. Give examples of construction materials and products that may be used again.

4.Resource efficient manufacturing processes
This section is about reducing job-site waste. How can this be done? Have you seen evidence of this on construction sites?

5.The specification of natural, plentiful or renewable resources wherever possible
What is a natural resource? What is a renewable resource? Identify and describe the use of these in the construction industry. Identify natural and renewable materials on the Harraton development

6.Locally available materials specified wherever possible
What does this mean? Why is it important? Give examples.

7.Durable materials specified wherever possible
What does durable mean? Why is it an important feature?

just ignore the stuff about harraton

thanks nath

The Expert answers:

This belongs in the homework category.

Robert asks…

If you can answer these science questions CORRECTLY, I will award your awesome self with 10 points [;?

1. What is the most common use of water in the United States? (Points : 3)
power plants
industry
domestic use
agriculture

2. Which of the following abiotic factors would likely affect humans directly? (Points : 3)
water availability
climate change
soil pH
humidity

3. A conservation easement would be best suited to offset which of the following threats to biodiversity? (Points : 3)
habitat loss
exotic species
overharvesting
habitat degradation

4. Which of the following would have direct effects on the resources available to a population? (Points : 3)
socioeconomic status of individuals
religious beliefs
housing
war

5. Which prediction is true based on this population pyramid?

(Points : 3)
The population is not growing.
The population is growing rapidly.
The population is declining.
The population is growing slowly.

6. If over a 10-year period, a nation of 100 million people has a birth rate of 15 million, but a death rate of 5 million and a net migration rate of 2 million, the population is doing which of the following? (Points : 3)
decreasing in size
growing in size
decreasing first and then growing
staying the same over time

7. Which of the following would reduce water tables? (Points : 3)
flood
water pollution
snowmelt
overpopulation

8. Which of the following stresses would most likely cause an ecosystem to respond by succession? (Points : 3)
water pollution
wildfire
air pollution
urbanization

9. How might a flood affect the population of an area? (Points : 3)
reduce the need for resources
reduce the population
increase the population
increase available resources

10. Which of the following is a natural resource? (Points : 3)
plastic
iron
steel
concrete

11. Which of the following is a nonrenewable resource? (Points : 3)
oil
solar energy
wind power
geothermal energy

12. Which mineral is used in making cans and is found mainly in Australia? (Points : 3)
magnetite
hematite
tektite
bauxite

13. Smelting is the major method used to refine and enrich which of the following? (Points : 3)
iron ore
oil
uranium ore
coal

14. Which of the following is an example of sustainable use of natural resources? (Points : 3)
clear-cutting a forest
continuously strip mining coal deposits in an area
planting multiple crops together on a field and harvesting them at different times
harvesting huge populations of fish from a fishing shoal

15. A resource is being used by a population. Which graph represents a sustainable yield of that resource?

(Points : 3)
Graph A
Graph B
Graph C
Graph D

16. Which of the following is a renewable resource? (Points : 3)
forests
iron ore
coal
oil

17. Which technology would best help the United States wean itself from foreign oil? (Points : 3)
more nuclear power plants
geothermal energy
solar-heated homes
biodiesel fuel

The Expert answers:

1 agriculture
2 water avaliability
3 all of them
4 war
5 cant answer without picture
6 growing in size
7 over population
8 wildfire
9 reduce the population
10 iron directly. Plastic is a bi product of crude oil.
11 oil
12 magnatite.
13 iron ore
14 planting multiple crops together. (1 plant species in a field is called a monoculture
15 unanswerable without graph
16 forrests
17 all of them

Maria asks…

if you are a science WIZ i need a help on some questionS?????

QUESTION 1:
what makes the left side of your heart efficent at pumping blood throughout your body?

QUESTION 2:
describe the function of each major organ of the digestive tract.

QUESTION 3:
describe the function of each accessory organ if the digestive tract.

QUESTION 4:
name the 4 components of blood and what each one does.

QUESTION 5:
list the levels of organazation of the human body in order from smallest to largest.

QUESTION 6:
explain why a bicycle would be considered a system. What would happen if part of it were removed ?

QUESTION 7:
what is the difference between qualitative and quantitative data?

QUESTION 8:
give at least one example of qualitative data and one example of quantitative data.

QUESTION 9:
list the renewable and non- renewable resource and descibe how they produce energy.

QUESTION 10:
what are the advantages and disadvantages of renewable and non-renewable resources?

The Expert answers:

3) The mouth is for chewing/consuming the food. Saliva helps lubricate it. The esophagus sucks the food into the stomach. Stomach mixes food, has Pepsin, Hydrochloric Acid, and Mucus in it. Helps break down food. The intestines break it down further and turn the stuff into the waste that comes out the “back door.”

6) A bicycle is a system because it uses every part to work fully. In other words, everything works together as a “team.” If something were removed, it wouldn’t work at all.

7) Qualitative data is based on information in the form of words; quantitative data is usually more numerical data. That should help you come up with an answer for number 8.

Ruth asks…

SCIENCE HELP PLEASE PLEASE PLEASE PLEASE?

1. A 13-kg sled is moving at a speed of 3.0 m/s. At which of the following speeds will the sled have twice as much kinetic energy? (1 point)
1.5 m/s
4.2 m/s
6 m/s
9 m/s
2. Which of the following is an example of an object with elastic potential energy? (1 point)
a wind-up toy that has been wound up
a compressed basketball
a stretched rubber band
all of the above
3. Why is the gravitational potential energy of an object 1 meter above the moon’s surface less than its potential energy 1 meter above Earth’s surface? (1 point)
The object’s mass is less on the moon.
The object’s weight is more on the moon.
The object’s acceleration due to gravity is less on the moon.
both a and c
4. A 4-kilogram cat is resting on top of a bookshelf that is 3 meters high. What is the cat’s gravitational potential energy relative to the floor if the acceleration due to gravity is 9.8 m/s2? (1 point)
7 J
12 J
29 J
118 J
5. The total potential and kinetic energy of all the microscopic particles in an object make up its _____. (1 point)
chemical energy
electric energy
nuclear energy
thermal energy
6. Nuclear power plants are designed to convert nuclear energy into what type of energy? (1 point)
chemical
electrical
geothermal
mechanical
7. Which of the following statements is true according to the law of conservation of energy? (1 point)
Energy cannot be created.
Energy cannot be destroyed.
Energy can be converted from one form to another.
all of the above
8. If no friction acts on a diver during a dive, then which of the following statements is true? (1 point)
The total mechanical energy of the system increases.
Potential energy can be converted into kinetic energy but not vice versa.
(KE+ PE)beginning = (KE + PE)end
all of the above
11. Nonrenewable energy resources do not include which of the following? (1 point)
coal
hydrogen fuel cells
oil
uranium
12. A drawback of solar energy is that it _____. (1 point)
cannot be converted directly into electrical energy
depends on the climate
produces water pollution
is not a renewable resource
13. A benefit of a hydrogen fuel cell is that its byproduct is _____. (1 point)
carbon dioxide
oxygen
water
uranium
14. Based on your knowledge of energy conservation, which of the following statements is true? (1 point)
Manufacturers can increase a light bulb’s energy efficiency by using technology that increases the amount of electromagnetic energy the bulb converts from a given amount of electrical energy.
Energy can be conserved by turning off lights when they are not in use.
both a and b
neither a nor b

The Expert answers:

Yes

Steven asks…

Is this a good essay on man vs nature?

I have to write an essay on who is crueler man or nature is this good

Who is more cruel:
Man or Nature

Man and nature are two different forces that act alike in many ways, nature has many dangerous attributes or forms such as a tsunami or an earthquake but it can also be peaceful and harmless such as a butterfly. Man has traits that resemble the one’s previously stated some are evil and selfish, others peaceful and generous.Some say man is far more cruel than nature others disagree, but why do most people think man is crueler than nature ?

Nature is equivalent to the natural world and refers to the phenomena of the physical world, and also to life in general. Nature can positively influence humans and everything existing, for example rain can help fertilize the soil for better growth of plants and similarly the sun’s light provides energy to green plants through photosynthesis. Although nature acts positively in many ways it also acts in a negatively.
For example volcanoes release boiling hot magma that destroys land and causes deaths, in 1815 a volcano erupted in Indonesia which killed approximately 92,000 people. Similarly this year there was an earthquake in Haiti on the 12th of January that had a magnitude of 7.0 and killed about 230,000 people,left 1,000,000 people homeless and had 52 aftershocks with a magnitude of about 4.5.

Man represents all homo sapiens or all humans that existed in the past and present time.Like nature, man has many positive influences to help develop a better world, for example many people study medicine to help heal people from diseases and injuries and some become enforcers of the law and protect the citizens of an area from criminals breaking the law. In contrast many other humans act negatively by disobey laws or causing chaos. For example Adolf Hitler was a very cruel german leader who believed that people that people who were handicapped or physically disabled or believed in a different religion did not deserve to live,he sent soldiers to capture them and kill them using a gas chamber and/or other cruel ways of death. Some humans also cut down trees and rain forests just to open a factory. Some overuse non-renewable resources which we can never regain( coal,oil,natural gas etc.) carelessly without thinking about the environment they are polluting and the after math of the situation. What really strengthens my opinion that man is far more cruel than nature is because unlike nature man has a conscience on whether or not to something.

In conclusion nature and man both influence the world positively and negatively equally throughout our current generation and the ones of the past, what really strengthens my opinion that man is far more cruel than nature is because unlike nature man has a conscience on whether or not to something.
Thank you,This is an essay we have to write(in grade 9) do you think i should hand this in, is there anything better i could add

The Expert answers:

Its not bad, spell and grammer check it. And man is crueler. Just my opinion. Not only for the point you brought up at the end but the earth gives back. Humans take and take. Barely giving back anything. So I guess I’m agreeing with you. I personally think the earth should shake human kind off like fleas. We are a virus that do nothing but infect and multiply. And take up resources.

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