Earth Day Quiz - CNN.com

(CNN Student News) -- Earth Day is April 22. What began in America in 1970 as a https://www.youtube.com/watch?v=uRbW3ayDWVQ day to promote environmental awareness has become a year-round global campaign to protect and conserve the Earth and its resources. How much do you know about conservation? Take this quiz and find out.

1. On average, what is the approximate daily home water use for each person in the U.S.?

A. 25 gallons

B. 50 gallons

C. 100 gallons

D. 200 gallons

Answer:

2. On average, what percentage of household water is used outdoors for watering lawns and gardens?

A. 10-30 percent

B. 30-50 percent

C. 50-70 percent

D. 70-90 percent

Answer:

3. Approximately what percentage of the water in the world can be used to meet the agricultural, residential, manufacturing, community and personal needs of humans?

A. 1 percent
< br>B. 5 percent

C. 25 percent

D. 40 percent

Answer:

4. Approximately how many sheets of 100% virgin copy paper can be made from one tree that is roughly 40 feet tall and 6-8 inches in diameter?

A. 2,000 sheets

B. 8,000 sheets

C. 20,000 sheets

D. 50,000 sheets

Answer:

5. In the average home, which of the following uses the most water?



A. Flushing the toilet

B. Filling the bathtub

C. Taking a 10-minute shower

D. Washing one load of clothes

Answer:

6. For approximately how long can a person live without water?

A. Two days

B. Four days

C. One week

D. Two weeks

Answer:

7. Which of the following takes the longest time to break down or disintegrate?

A. Disposable diaper

B. Hard plastic container

C. Aluminum can

D. Plastic 6-pack holder

Answer:

8. Which of the following accounts for the greatest percentage of total waste in the U.S.?

A. Yard trimmings

B. Paper

C. Plastics

D. Glass



Answer:

9. In the same amount of time, which of the following home appliances consumes the most electricity?

A. Space heater

B. Hair dryer

C. Computer and monitor

D. Water heater

Answer:

10. Which of the following accounts for the greatest percentage of a typical home ene rgy bill?

A. Heating and cooling

B. Clothes washer and dryer

C. Computer and monitor

D. Refrigerator

Answer:

11. Which of the following https://www.youtube.com/watch?v=uRbW3ayDWVQ is NOT a renewable resource?

A. Ethanol

B. Natural gas

C. Hydrogen

D. Methanol

Answer:

12. What substance is released into the atmosphere when http://www.lrnelson.com/products/sprinklers/ solid waste, fossil fuels and wood products are burned?

A. Hydrogen peroxide

B. Sodium chloride

C. Carbon dioxide

D. Calcium sulfate

Answer:

13. Which of the following U.S. government environmental acts was NOT a result of the first Earth Day demonstrations?

A. Endangered Species Act

B. Clean Water Act

C. Clean Air Act

D. National Wash-Your-Car Day

Answer:

http://www.cnn.com/2007/EDUCATION/04/10/earth.day.quiz/index.html?_s=PM:EDUCATION

Lawns in Spring

If winter be our great discontent, then spring is the time of great uncertainty and none in recent memory has proved this the case more righteously than the one we are currently experiencing. So far we have seen several late frosts, one of the longest droughts in recorded history and now a somewhat welcome rainy spell. However, what this equates to is a great deal of https://en.wikipedia.org/wiki/Gardening risk for the delicate areas of gardens, roots can freeze and die, and high winds can destroy those bloomers that the drought fooled us into exposing. However, this week we are discussing lawns, the basic maintenance tips during such an unruly April, and whether turf really is the better option over seed.



If you're starting from scratch with a new lawn, there are different types of grass seed and turf, c omposed of different mixes of varieties. Cool-season grasses include fescue, blue grass and rye, which have two annual growth spurts, the first preliminary spurt in spring and the more noticeable growth in autumn, due to their preference they will suffer in particularly hot summers-such as the one we've been promised this year- and so the priority of spring care is preparing them for the difficult months ahead. Warm-season grasses are comprised of species like Zoysia, St. Augustine and Bermuda, which will hibernate in the winter months and will flourish once the thaw is well over and the hot weather begins, growing consistently from https://www.gardeningdirect.co.uk/ late spring to late summer.

The debate between seeded lawns and turf continues. Seeding is considerably cheaper, however, results can be patchy, and birds, cats and heavy rainfall can all result in seed being dispersed unevenly. Weed Sprinklers control is also a factor, because seeded lawns cannot be planted in conjunction with chemical herbicides and so it makes the weed problem much more strenuous to deal with. However, we must also consider the relative cost in man-hours vs. capital when thinking of the softer option of turf. Each obviously has their disadvantages and benefits, but in the end it is up to you decide based on the environment of your garden and also the budget you've allocated.



With established lawns, due Sprinkler Installation to the post winter moisture that will have no doubt accumulated in your garden, try to avoid any heavy garden work or even walking on the lawn until it dries out, as weight and hard impact can cause the soil to condense and the grass itself to develop clumps that will be unsightly and interfere with growth.



But, once your garden has dried out, it is best to give the lawn a thorough, but gentle, spring clean. Gather leaves and other fallen debris by hand and then carefully rake over to lift those blades of gra ss stuck together, to make it easier to mow. With the first cut, lift the mower blades a little and then gradually lower them as the season moves on. Try to avoid scalping, as this will encourage moss and weeds. It's best to leave the clippings on the lawn in spring and summer, as they will feed the growing lawn and keep some moisture in too.



Any bare patches can be re-sown this month. Just lightly fork over the surface to break it up and then firm it down gently before sowing the seed. Don't forget to water it though! Feed the lawn with slow-release organic fertiliser now for a greener lawn later, but don't over feed as this will make it prone to disease.

Finally, people often ask us how to create those stripes you see on lawns - it's simple, you just need a mower with a roller on it and then mow in different directions, up and down the lawn. Grass has a 'nap', just like some fabrics, and the roller just lays the grass in different directions, thereby creating the stripes - easy!

http://www.selfgrowth.com/print/4728066