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Semmy [17]
3 years ago
6

Can someone please help me at my science homework

Biology
1 answer:
Alisiya [41]3 years ago
6 0
Negative ways humans can spoil the environment is 1.using too much carbon like in cars,power plants, and green house. 2. littering and dumping trash or oil in the waters or land. 3. over fishing or some times over hunting and even poching. positive effect is 1. they have try to clean the waters and land.2. there are patrols to watch people from over fishing or hunting 3. they are trying to reduce the amount of carbon used in the air. 
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The concentration of N2 in blood at 37 °C (body temperature) and atmospheric pressure (partial pressure of N2 = 0.80 atm) is 0.0
devlian [24]

Answer:

volume  = 0.285 L

Explanation:

Henry constant is given as

Henry constant  =  \frac{C}{P}

Where C  is concentration

P is atmospheric pressure

Henry\ constant = \frac{0.00056}{0.80} = 0.0007 M/atm

when atmospheric pressure 4 atm

solubility = K_H\times P

              = 0.0007 \times 4 = 0.0028 M

In 5 litere blood , moles of N_2 = Molarity \times volume

                                                     = 0.0028 \times 5 = 0.014

At surface moles  = 0.0056 \times 5 = 0.0028

Moles of N_2 release = 0.014 - 0.0028 = 0.0112

Mass of N_2 = 0.0112 \times 28 = 0.314 g

T = 37 + 273 = 310 K

VOLUME = \frac{nRT}{P}

= \frac{0.0112\times 0.0821\times 310}{1}

volume  = 0.285 L

6 0
3 years ago
What is true about concerning sources of water pollution
allsm [11]

Answer:

it can result in fish kills and restrictions on human consumption it can change the physiology of fish it can cause long-term alterations of aquatic ecosystems

Explanation:

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What would happen if the body didn't maintain homeostasis?
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Dehydration would happen if not my mistaken
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Hat is the horizontal line present across the front teeth of this skeleton and what does it represent?
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Energy that transfers between substances because of a temperature difference between the substances is known as _______.
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The best answer is B; heat energy is also known as thermal energy.
3 0
3 years ago
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