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kupik [55]
2 years ago
13

. How can a change that occurs downstream in a river ecosystem (that is, a dam) affect the rest of that ecosystem?

Chemistry
1 answer:
Helen [10]2 years ago
8 0
Well, dam is used as the main source of water that irrigate the whole ecosystem.
dam will hold the water to be used by the bottom half of the ecosystem, but this could result in negative effect such as it will flood will unclean water since the water is not flowing as normal.
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Over a long period of time, an igneous rock changes into a sedimentary rock. Which of these actions must have affected the igneo
Alla [95]

Answer: The actions that must have affected the igneous rock in order to form the sedimentary rock is that (It must have been broken down into sediments).

Explanation:

Rocks are solid structures that occurs naturally which is made up of different minerals. There are three main types of rocks, these includes:

--> METAMORPHIC ROCKS: These are the type of rocks which are formed by temperature and pressure changes inside the Earth.

--> SEDIMENTARY ROCKS: these rocks are usually formed from pre-existing rocks through the process of weathering (breaking down) of rocks.

--> IGNEOUS ROCKS: these rocks are formed when molten magma cools beneath or above the earth surface.

The actions that must have affected the igneous rock in order to form the sedimentary rock is that the igneous rocks are broken down into smaller pieces by erosion and weathering processes. Sediments which are formed accumulates at the earth surface. Over a long period of time, these sediments builds successive layers on top of one another. The sediments near the base hardens to form sedimentary rocks. This justifies the statement as a correct option (It must have been broken down into sediments).

3 0
3 years ago
A gas exerts a pressure of 1.35 atm. What is the equivalent measures in mmHg?
Pie
1.35atm(760mmHg/1atm)=1026mmHg
8 0
3 years ago
What is the volume that you should dilute 30mL of a 12.0M H2SO4 solution to obtain a 0.160M H2SO4 solution?
shutvik [7]
To solve this problem, the dilution equation (M1 x V1 = M2 X V2) must be used. The given values in the problem are M1= 12.0 M, V1= 30 mL, and M2= 0.160 M. To solve for V2,
V2=M1xV1/M2
V2= (12x30)/0.16
V2= 2,250 mL.
The correct answer is 2.25 L.
8 0
3 years ago
What type of solution has a pH of 7?
motikmotik
If pH+ is 7
It is Neutral solution
5 0
3 years ago
How many compounds can I make with sodium, hydrogen, oxygen?
Natalka [10]

Answer:

маны

Explanation:

6 0
2 years ago
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