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Leona [35]
3 years ago
7

Why are streams and rivers important for ecosystems?

Physics
2 answers:
givi [52]3 years ago
6 0
Streams are a crucial part of Earth's circulatory system. They carry sediments, nutrients and other materials into rivers and lakes and on to the ocean. But streams are also vital ecosystems on their own, providing wildlife habitat, protecting us from floods and supplying much of our drinking water.
polet [3.4K]3 years ago
5 0
Rivers provide vital advantages, referred to as ecosystem services, that have an impact on our daily life. Drinking water, irrigation, transportation, and other services are provided by them. They also serve as spawning grounds for significant fish species. Rivers provide us with drinking water, irrigate our crops, provide hydroelectricity to our towns, support fish and other aquatic species, and offer a variety of recreational and commercial options. Small streams (such as headwater streams) and the wetlands they support are just as essential.
Hope this helps please mark as brainliest!
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Does heat rise or fall?? the last person that answered did it just for the points and gave me no real answer
nasty-shy [4]
Heat does not rise or fall because it is an energy being transferred. It is the hot air which rises because colder air is denser than hotter air.
8 0
3 years ago
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A block of mass of 10kg is being pushed on a tabletop downwards by a force of 200N. There is no acceleration in the problem. Cal
lord [1]
F = M*A 

200N*10KG is 2000 newtons

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Plants that respond to light are responding
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I believe the answer is b. external stimulus
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A 1.6 kg block slides with a speed of .95 m/s on a frictionless, horizontal surface until it encounters a spring with a spring c
Bas_tet [7]

Answer:

(a) the compression of the spring when the block comes to rest is 4cm

(b) speed of the block is 0.427 m/s

Explanation:

Given;

mass of the block, m = 1.6 kg

spring constant, k = 902 N/m

initial speed of the block, v₀ = 0.95 m/s

(a) the compression of the spring when the block comes to rest

when the block comes to rest, the final speed, vf = 0

Apply the law of conservation of energy;

¹/₂kx² = ¹/₂mv₀²

kx² = mv₀²

x = \sqrt{\frac{mv_0^2}{k} } \\\\x =  \sqrt{\frac{1.6(0.95)^2}{902} }\\\\x = 0.040 \ m

x = 4 cm

(b)  speed of the block

Apply the law of conservation of energy;

¹/₂mv² = ¹/₂kx²

mv² = kx²

v = \sqrt{\frac{kx^2}{m}}\\\\v =   \sqrt{\frac{(902)(0.018)^2}{1.6}}\\\\v = 0.427 \ m/s

7 0
3 years ago
You drop a rock off a bridge. The rock's height, h (in feet above the water), after t seconds is modeled by h = – 16 t2 + 541. W
marin [14]
<span>h ( t) = h(1 sec) = -16t^2 + 541

so h (2 sec) = -16*(2)^2 + 541 = -64 + 541 = <span>477 ft

Therefore, </span></span>the height of the rock after 2 seconds is 477 feet.

I hope my answer has come to your help. Thank you for posting your question here in Brainly.
5 0
4 years ago
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