Forests and prairies are examples of ecosystems on land. An ecosystem is a community of living things. Members survive by interacting with each other and with their environment. At first glance, the ocean seems like one big ecosystem.
Answer:
20cm^2
Explanation:
Here, Density= Mass/ Volume
=100/5
= 20 cm^2
Explanation: cell in the body is enclosed by a cell (Plasma) membrane. The cell membrane separates the material outside the cell, extracellular, from the material inside the cell, intracellular. ... All materials within a cell must have access to the cell membrane (the cell's boundary) for the needed exchange
**Answer**: The answer would be Yes I believe
Answer : The number of grams of oxygen react must be, 170.4 grams.
Solution : Given,
Mass of 
= 46.85 g
Molar mass of = 44 g/mole
Molar mass of 
= 32 g/mole
First we have to calculate the moles of .
Now we have to calculate the moles of
The balanced chemical reaction is,
From the balanced reaction we conclude that
As, 1 mole of react with 5 mole of
So, 1.065 moles of react with 
moles of
Now we have to calculate the mass of
Therefore, the number of grams of oxygen react must be, 170.4 grams.
