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Middle school Earth and space science - NGSS
Course: Middle school Earth and space science - NGSS > Unit 5
Lesson 3: Human impacts on the environmentHuman impacts on the environment
Human activities—such as land use, water use, and deforestation—often have negative impacts on the environment. These impacts worsen as the human population grows and consumes more resources. Science can help identify ways to reduce our impacts, but it is ultimately up to us to take action. Created by Khan Academy.
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- This reminds me of a book i read called WHAT IF EVERYONE DID THAT ! what if every one saved earth that would be good☺☺☺😀😀😁😄🙂😆💛(22 votes)
- honestly the greatest video i have ever seen in my life. i am changed for good. i was never happy but after witnessing this beautiful piece of art i have come to total peace in my community. i am loving life thanks to this inspirational, great video. whoever made this, to you i thank for infinite prosperity, bliss, and serene peace among me and my family. i hope you have a good day after watching this absolutely beautiful piece of art. this is the greatest single video to ever exist. thank you or showing me this absolutely amazing piece of knowledge.(9 votes)
- my brain hurts(7 votes)
- dont worry it will get easier the more u study(4 votes)
- Bro just destroy the dam that would fix lake urmia.(5 votes)
- Not necessarily. Much of the water has evaporated and been absorbed by plants, so simply destroying the dam wouldn't fix everything. Plus, the dam was expensive to build, and it would cost more to destroy it. Hope that helped:P(4 votes)
- How dos the moon block the sun on a Solar eclipse(4 votes)
- The earths shadow covers the moon that covers the sun.(4 votes)
- Why does the moon block the sun?(3 votes)
- The Sun is completely blocked in a solar eclipse because the Moon passes between Earth and the Sun. Even though the Moon is much smaller than the Sun, because it is just the right distance away from Earth, the Moon can fully blocks the Sun's light from Earth's perspective.
Hope this answers your question:)(2 votes)
- You know Lake uremia? How do they keep the PH of the water constant as they're adding more and more water?(4 votes)
- The first pollution what if actually happened to me but I wasn’t the one littering(3 votes)
- Probably the biggest lake drying up was the aural
sea in Uzbekistan(3 votes)