What are the advantages and disadvantages for methods used to reduce the impact of human activity?
Answers
advantages
1.Less flooding
2.Less erosion
3.Return of natural ecosystems
disadvantages
1. People go hungry
2. People don't get the water they want
3. People don't get the land they want for homes
Final answer:
Human activities can increase the carrying capacity of the environment but can also cause environmental degradation and potential decrease in carrying capacity.
Explanation:
Human activities can have both advantages and disadvantages in terms of reducing their impact on the environment. One advantage is that development of food production methods and high-quality shelters can increase the carrying capacity of the environment, allowing more people to live. However, these technologies can also lead to environmental degradation, such as air pollution, water contamination, habitat loss, and climate change. The negative effects of increasing carrying capacity may even outweigh the positive ones, potentially decreasing the world's carrying capacity for human beings.
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Related Questions
To neutralize gastric juices in your stomach antacids contain
Using a good pair of binoculars, you observe a section of the sky where there are stars of many different apparent brightnesses. You find one star that appears especially dim. This star looks dim because it is:_______.
Which electric component provides energy to the circuit of a flashlight?battery motor resistor switch
a skier is gliding along 3.0 m/s on horizontal, frictionless snow. he suddenly starts down a 10 degrees incline. his speed at the bottom is 15 m/s. what is the lenght of the incline? how long does it take him to reach the bottom?
Answers
Answer: The work done by the motor is 60000 J
Explanation:
Power is defined as the rate of work done by an object with respect to time.
Mathematically,
where,
P = power of the motor = 6000 W
W = work done by the motor = ?
t = time taken = 10 sec
Putting values in above equation, we get:
Hence, the work done by the motor is 60000 J
A.) a 30-watt CD player used for 3 hours (10,800 seconds)
B.) a 300-watt blender used for 2 minutes (120 seconds)
C.) a 1,500-watt hair dryer used for 3 minutes (180 seconds)
D.) a 200-watt computer used for 10 hours ( 36,000 seconds)
Answers
300*2=600
1500*3=4500
200*10*60=120000
the computer uses more energy.
(you can multiply all results by 60 to get the energy in J, but it's not necessary for the comparison)
Answer:
a 200-watt computer used for 10 hours ( 36,000 seconds)
Explanation:
B.the source of energy that fuels stars
C.the expansion of the universe
D.the origin of life
E.what came before the big bang
Answers
Answer: A.unexpected orbital velocities of stars in galaxies
Explanation:
Dark Matter makes up about 80% of matter in the universe. This matter does not emit light and hence, it is called dark matter as it cannot be observed directly.
The effect of the presence of the dark matter is unexpected orbital velocities of stars in galaxies. At the center, the orbital velocities are greater than those at the edge. Had there been no dark matter, the galaxy would have flown apart.
ohms law..any one
Answers
Physics is as good a place as any, I guess.
And, before we roll up our sleeves, may I also note that assigning 48 fill-ins
(4 each for 12 problems) is exceeded in its excess only by expecting all of
the answers in return for 5 points. I'll give you the tips and hints you need
in order to solve these, and then I'll wish you well.
I see from the label in the upper corner that all of this refers to series circuits.
That's important to know, and I was about to ask. So we're going to assume
that for the whole bunch on the page, R1 and R2 are in series, connected
across VS, and there are no other components involved besides the two
resistors.
OK. Here are the tools you need:
On a resistor . . .
' K ' = 'thousand'
' Meg ' = 'million'
Total resistance . . . RT = R1 + R2 ohms
Voltage across each resistor:
VR1 = VS [ R1 / (R1+R2) ] volts
VR2 = VS [ R2 / (R1+R2) ] volts
Total current in the series circuit:
IT = VS / RT = VS / (R1+R2) Amps
And that's it. Easier than I thought. There are some other things that
it could have asked for, but it didn't.
Example:
Line #4:
VS = 5 volts
R1 = 470 ohms
R2 = 1,000 ohms
RT = R1 + R2 = 1,470 ohms
VR1 = VS ( R1/RT ) = 5 (470 / 1,470) = 1.598... volts
VR2 = VS ( R2/RT ) = 5 (1,000 / 1,470) = 3.401 volts
(Notice that VR1 + VR2 always = VS.)
IT = VS / RT = 5 / 1,470 = 0.0034 Amperes = 3.4 mA (milliamps)
The power supplied by the battery is (VS)²/RT = 0.017 watt ,
but it doesn't ask for that.
And that's it ! That's everything you need. Go get 'em, champ !
Answers
circular motion and its period of revolution are inversely proportional.
B. moving with a constant speed
C. slowing down
D. maintaining a constant velocity
Answers
"Zero acceleration" means "velocity" that's not changing.
Sadly, it seems that both of these words are almost always
misinterpreted and misunderstood. "Acceleration" does NOT
mean "speeding up", and "velocity" does NOT mean speed.
"Velocity" is the speed AND direction of motion. So, for example,
'30 miles per hour north' and '30 miles per hour west' are the same
speed but different velocities.
"Acceleration" is ANY change in speed OR direction. Consider three
different families in three different cars. One car is speeding up, one is
slowing down, and the third is driving around a curve at a steady speed.
ALL three of the cars are accelerating.
Answer:
Zero acceleration means velocity that's not changing.
Explanation: