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Lemur [1.5K]
3 years ago
7

What are four main types of fresh water ecosystems

Chemistry
2 answers:
saw5 [17]3 years ago
8 0

Answer:

streams and rivers

ponds and lakes

wetlands

ocean gulf of Mexico

hope it helped

tensa zangetsu [6.8K]3 years ago
4 0
Oceans. Oceans are some of the most diverse and geographically expansive ecosystems on earth. Ocean ecosystems are divided into four zones: intertidal, pelagic, benthic and abyssal. The intertidal zone comprises the regions where ocean waters meet land.
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Check the boxes next to events or trends that first occurred in science from about 1700. Darwin published his theory of natural
marishachu [46]

Check the boxes next to events or trends that first occurred in science from about 1700.

X Darwin published his theory of natural selection.

-Darwin published his work in 1859.

X Archimedes described the principle of the lever.

-Archimedes discovered this during the third century BC (300-201 BC)

/ Scientific societies and academies were formed.

-These were formed around 1789

X The double-helix structure of DNA was determined.

<span> -IT was discovered in 1953 by James Watson and Francis Crick.</span>

X Copernicus proposed a Sun-centered universe.

<span>-It was proposed in the 16th century.</span>

X Continental drift was explained by the theory of plate tectonics.

<span> -It was proposed at around 1910 till 1950 but was accepted at 1960. </span>

X The Earth was proven to be spherical.

-It was argued at around 384-322 BC.

4 0
3 years ago
Read 2 more answers
a sample of gold is heated from 12 degrees to 28 degrees celsius and absorbs 460 joules of energy. What is the mass of gold?
Gemiola [76]

Answer:

hi friends I don't no answer so sorry sorry sorry

Explanation:

but you follow me and give me brainliest ok by by by by by

3 0
2 years ago
How do you know something is there if you can't see it? *
lesantik [10]

We can only see things if they give off light but be we use other senses to gather information about things we cannot see.

8 0
2 years ago
Consider the volume of gas collected in the trial in Experiment 2 for Ni at
ZanzabumX [31]

Answer:

Explanation:

H20

5 0
2 years ago
One method for preparing pure iron from Fe2O3 is by reaction with carbon monoxide.Fe2O3(s)+CO(g)→Fe(s)+CO2(g) How many moles of
larisa [96]

Answer:

The 2292 moles of CO are needed to react completely with 122 Kg of Fe₂O₃.

Explanation:

Given data:

Mass of Fe₂O₃ = 122 Kg ( 122×1000 =  122000 g)

Moles of CO = ?

Solution:

Chemical equation:

Fe₂O₃ + 3CO  → 2Fe + 3CO₂

Number of moles of  Fe₂O₃:

Number of moles = mass/ molar mass

Number of moles = 122000 g /159.69 g/mol

Number of moles = 764 mol

Now we will compare the moles of Fe₂O₃ with CO.

                               Fe₂O₃            :            CO  

                                  1                  :             3

                               764                :             3×764  =2292 mol

The 2292 moles of CO are needed to react completely with 122 Kg of Fe₂O₃.

6 0
3 years ago
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