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Annette [7]
3 years ago
12

Which of the following human activities could have an irreversible effect on an ecosystem? I. introducing a new species II. urba

n sprawl III. introducing a new chemical IV. over-hunting
Chemistry
2 answers:
pav-90 [236]3 years ago
6 0
Introducimg a new chemicsl to the enviormrnt snd posssibly a new hunting techniquie 
Ulleksa [173]3 years ago
4 0

Answer: It is all of them

Explanation:I just had the question

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Question 2 (1 point)
Alex73 [517]

Answer:

35 amu

Explanation:

In an atom, only masses of protons and neutrons are relevant. electrons are so small in size that their masses are negligible.

The mass of 1 proton/neutron is 1amu.

6 0
3 years ago
How do scientists measure the idea of time so long ago?
aleksklad [387]

The Ancient Egyptians used simple sundials and divided days into smaller parts, and it has been suggested that as early as 1,500BC, they divided the interval between sunrise and sunset into 12 parts. ... Known as a clepsydra, it uses a flow of water to measure time.

4 0
3 years ago
A 30.5-g sample of water at 300. K is mixed with 48.5 g water at 350. K. Calculate the final temperature of the mixture assuming
ahrayia [7]

Answer:

sorry but i cant

Explanation:

8 0
3 years ago
The atomic number and the mass number of 18 and 40. Write the information conveyed by this statement.​
VashaNatasha [74]
There are 18 protons and electrons and 22 neutrons in the atom
8 0
3 years ago
What is the effect on the equilibrium when sodium formate is added to a solution of formic acid? hcooh( aq) + h ( aq) right arro
artcher [175]

There is no effect on the equilibrium when sodium formate is added to a solution of formic acid for hcooh( aq) + h ( aq) right arrow choo –( aq).

Equilibrium is characterized as a state of equilibrium or a stable situation in which conflicting forces balance one another out and no changes are taking place. In terms of economics, equilibrium occurs when supply and demand are equal. When you are composed and steady, you are in an equilibrium state.

An object is considered to be in an equilibrium condition when all of the forces acting on it are in balance. If the upward forces are equal to the descending forces and the rightward forces are equal to the leftward forces, then the forces are said to be balanced. Several instances of equilibrium include a book that is open and at rest. a vehicle that is going steadily.

To learn more about equilibrium please visit -
brainly.com/question/14602120
#SPJ4

4 0
1 year ago
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