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3 years ago

Why are food and water the limiting factors that usually have the greatest effect on population size?

1 answer:

5 0

Because food and water are resources that are basic needs for all members of the population. When these resources decrease more members of the population will either die or move to another area and the population size will decrease.

Hope this helps!

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PLS ANSWER ASAP

Kazeer [188]

The answer is c this is the answer

7 0

2 years ago

Read 2 more answers

A 1.28-kg sample of water at 10.0 °C is in a calorimeter. You drop a piece of steel with a mass of 0.385 kg at 215 °C into it. A

Kryger [21]

Answer:

$T_{2}=16,97^{\circ}C$

Explanation:

The specific heats of water and steel are

$Cp_{w}=4.186 \frac{KJ}{Kg^{\circ}C}$

$Cp_{s}=0.49 \frac{KJ}{Kg^{\circ}C}$

Assuming that the water and steel are into an <em>adiabatic calorimeter</em> (there's no heat transferred to the enviroment), the temperature of both is identical when the system gets to the equilibrium $T_{2}_{w}= T_{2}_{s}$

An energy balance can be written as

$m_{w}\times Cp_{w}\times (T_{2}- T_{1})_{w}= -m_{s}\times Cp_{s}\times (T_{2}- T_{1})_{s}$

Replacing

$1.28Kg\times 4.186\frac{KJ}{Kg^{\circ}C}\times (T_{2}-10^{\circ}C)= -0.385Kg\times 0.49 \frac{KJ}{Kg^{\circ}C} \times (T_{2}-215^{\circ}C)$

Then, the temperature $T_{2}=16,97^{\circ}C$

8 0

2 years ago

Define the term Symmetry? and explain its types

nika2105 [10]

Answer:

Mathematically, symmetry means that one shape becomes exactly like another when you move it in some way: turn, flip or slide. ... There are three basic types of symmetry: rotational symmetry, reflection symmetry, and point symmetry.

5 0

2 years ago

How many moles of Na3PO4 are in 820. grams of it?

kotegsom [21]

Answer:Hello

D is correct

Explanation:

4 0

2 years ago

When heated, mercury oxide produces oxygen plus mercury. What would be the combined mass of oxygen and mercury if 20g of mercury

vivado [14]

<span>Releasing the oxygen from the mercury does not change the mass. If you started with 20 g total you would still have 20 g total after the heating</span>

7 0

3 years ago