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Aliun [14]
3 years ago
11

Where does the threat to our world's ecosystems and quality of life come from? *

Geography
1 answer:
AnnZ [28]3 years ago
6 0

Answer:

human population

Explanation:

I would say this because almost every root problem comes from humans

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Voyager I is now about 110 AU from Earth, continuing to record its environment as it approaches the limits of our Solar System.
Monica [59]

Answer:

Answered

Explanation:

(i) 1 Astronomical Unit (A.U.) = 1.496 x 10^8 Km.

Therefore, distance of Voyager I from Earth = 71 AU = 71 x 1.496 x 10^8 = 1.062 x 10^10 Km.

(ii) The nearest star to Earth than sun is the Proxima Centauri in the Alpha Centauri system. The Proxima Centauri is 4.22 light years away from Earth.

As, 1 Light year = 63241.1 AU

The distance of the Proxima Centauri from Earth = 4.22 x 63241.1 AU = 266877.3 AU

The distance of the Voyager I from Earth = 71 AU

The number of times the distance of the Proxima Centauri from Earth is greater than that of Voyager I is = 266877.3 / 71

= 3758.835 times.

(iii) Speed of light is 1.079 x 10^9 Km/hr

Light travels 1.079 x 10^9 km in 1 hr

Therefore, 1. 062 x 10^10 Km is traveled by light in = (1.062 x 10^10) / (1.079 x 10^9) hr = 9.84 hours

That means when Voyager I was 71 AU from Earth, a observational data from Voyager I at the speed of light took 9.84 hours to reach Earth.

5 0
3 years ago
How big is United States of America
Alik [6]

Answer:3.797 million miles

Explanation:

4 0
3 years ago
What is the highest mountain of north africa?
In-s [12.5K]
<span>Toubkal. Toubkal or Tubkal Tubqal; Arabic: is a mountain peak in southwestern Morocco, located in the Toubkal National Park. At 4,167 metres (13,671 ft), it is the highest peak in the Atlas Mountains, Anti Atlas and in North Africa.</span>
3 0
3 years ago
If producers contain 100% of the energy in a food web,what amount of energy does the tertiary level receive
tekilochka [14]

<u>Answer:</u>

<em>Energy is left behind the food chain starting with one trophic level then onto the next. </em>

In any case, just around 10 percent of the complete energy put away in living beings at one trophic level is really moved to <em>living beings at the following trophic level. </em>

The remainder of the energy is utilized for metabolic procedures or lost to nature as warmth. Energy that isn't utilized in a <em>biological system</em> is in the end lost as warmth.

<em>Energy and supplements are gone around through the food chain, when one creature eats another life form.</em>

5 0
3 years ago
What weather predictions can you make about the highlighted area? Your answer should consider pressure, wind speed, and forecast
Setler79 [48]

Answer:

The highlighted area will experience a low-pressure system with four octas of cloud cover. Wind speeds will be between 48 and 52 knots coming from the South West. The L indicated the type of pressure and the pressure measured in mb on the map shows the reduction of the pressure towards the L. The circle half-shaded black indicated that the sky will have about 50% cloud cover. The wind bard indicated the direction the wind is blowing from and the triangle has a correlating speed. Also, this shaded area will likely experience rainfall.

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3 years ago
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