Science Help ! Please Help !?
Monday, April 25th, 20111. Ancient seedless plants compacted and eventually turned into the ____ we use today.
a. coal
b. oil
c. minerals
d. rubber
2. Of the following, which is NOT a characteristic of plants?
a. have cell walls
b. have roots
c. range in height
d. live only on land
3. Nonvascular plants include ____.
a. ferns and horsetails
b. horsetails and mosses
c. liverworts and ferns
d. mosses and liverworts
4. ____ is a chemical compound that forms tangled fibers in the cell walls of plants.
a. Stomata
b. Cambium
c. Cellulose
d. Cuticle
5. Of the following, which is NOT an example of a seed plant?
a. peanuts
b. peat moss
c. oranges
d. wheat
6. The most common type of plants on Earth is ____.
a. angiosperms
b. gymnosperms
c. nonvascular plants
d. seedless vascular plants
7. The major function of leaves is to ____.
a. make food
b. store food
c. transport
d. absorb nutrients
8. Which of the following eats consumers?
a. carnivore
b. herbivore
c. bacteria
d. fungi
9. Which is a more complete model of feeding relationships?
a. protein building
b. food map
c. food web
d. food chain
10. Which is a single individual from a population?
a. organism
b. ecosystem
c. community
d. niche
11. Drought, fewer plants, and fewer nesting sites are examples of ____ factors.
a. biotic
b. abiotic
c. limiting
d. carrying
12. Which of the following would help conserve natural resources?
a. using solar panels
b. recycling plastic bottles
c. ridding the environment of harmful pollutants
d. all of the above
http://www.flickr.com/photos/61671948@N02/5619145959/
13. Arrow C in Figure 19-1 is best described as ____.
a. solar radiation
b. carbon dioxide in the atmosphere
c. heat trapped near Earth’s surface
d. chlorofluorocarbons
14. Figure 19-1 represents the ____.
a. photovoltaic cell
b. greenhouse effect
c. use of hydroelectric power
d. use of nuclear energy
15. Most air pollution results from ____.
a. the burning of fossil fuels
b. nuclear energy use
c. volcanic eruptions
d. the evaporation of chemicals such as paints and dry-cleaning fluid
16. An advantage of nuclear energy is that ____.
a. uranium is a nonrenewable resource
b. it does not contribute to air pollution
c. it makes use of the wind
d. it makes use of hot water from geysers
17. To produce hydroelectric power, _____ is needed.
a. a fossil fuel
b. flowing water
c. sunlight
d. wind
18. The three Rs of conservation are _____.
a. reduce, reserve, resave
b. reuse, reclaim, return
c. reduce, reuse, recycle
d. redo, recycle, release
19. Explain how groundwater can become polluted.
20. Why is conservation important today?
Please help with these. I left my science book in my locker, and it won’t let me use the online textbook. Thanks ! (:
1. OIL
2. LIVE ONLY ON LAND
3. MOSSES & LIVERWORTS
4. CELLULOSE
5. PEAT MOSS
6. GYMNOSPERMS
7. MAKE FOOD
8. CARNIVORE
9. FOOD WEB
10. ORGANISM
11. BIOTIC
12. ALL OF THE ABOVE
13. HEAT TRAPPED NEAR EARTH’S SURFACEALL OF THE ABOVE
14. GREEN HOUSE EFFECT
15. THE BURNING OF FOSSIL FUELS
16. IT DOES NOT CONTRIBUTE TO AIR POLLUTION
17. FLOWING WATER
18. REDUCE, REUSE, RECYCLE
19. PESTICIDES USED IN AGRICULTURE, EARTH QUAKE FAULTS, WASTE DISPOSAL, SANDY SOIL, FRACTURED BED ROCK, HARD CLAY WHEREIN THE WATER SEEPS IN TO GROUND AND NOT PASS THROUGH THE LAYERS OF EARTH IN REGULAR WAY OF FILTER PROCESS IS NOT DONE.
20. The answer is that people use up our planet’s fresh water faster than it can naturally be replenished.
Water conservation refers to reducing the usage of water and recycling of waste water for different purposes such as cleaning, manufacturing, and agricultural irrigation. It is important in these days of global warming and pollution of almost all natural resources and if the human race along with all the living beings which require water and need to sustain and carry on, on this planet. About 80% of the Earth is covered in water, but only 17% of it is feasible to drink as the rest is saline in nature.
We need water to grow food, keep clean, provide power, control fire, and last but not least, we need it to stay alive!
# When you use water wisely, you help the environment. You save water for fish and animals. You help preserve drinking water supplies. And you ease the burden on wastewater treatment plants—the less water you send down the drain, the less work these plants have to do to make water clean again.
# When you use water wisely, you save energy. You save the energy that your water supplier uses to treat and move water to you, and the energy your family uses to heat your water.
# When you use water wisely, you save money. Your family pays for the water you use. If you use less water, you’ll have more money left to spend on other things.
………." Using water wisely means conserving it when you can, and not wasting it. "
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