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Neko [114]
3 years ago
9

Most of the energy in the United States comes from:

Biology
1 answer:
Grace [21]3 years ago
8 0
Solar power/energy or hydroelectric plants
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What is the function of a cell membrane?
kvasek [131]

Answer:

the answer is A

Explanation:

just got done with that unit

6 0
3 years ago
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Expected prevalence of a disease is:______.
goldfiish [28.3K]

Answer: c) the anticipated geographical spread of a disease based on past observances.

Explanation: Prevalence simply means the widespread of a thing or condition. In epidemiology, prevalence can be defined as the total number of people in a population that is affected by a medical condition or total number of cases of a disease in a population in a given period of time.

Expected prevalence of a disease is therefore the anticipated widespread of a disease or the anticipated total number of cases of a disease in a population based on past observed incidences.

5 0
3 years ago
What is the volume of 0.25 mol of ammonia gas at 1.00 atm and 273 K? (R= 0.0821 Latm/molK)What is the volume of 0.25 mol of ammo
ICE Princess25 [194]

Answer:

5.6L

Explanation:

Given parameters:

number of moles  = 0.25mol

pressure on gas  = 1atm

temperature  = 273K

Gas constant R = 0.0821Latm/molK

Unknown:

Volume of gas  = ?

Solution:

Using the ideal gas equation, we can solve this problem. The equation is a combination of the three gas laws: Boyle's law, Charles's law and Avogadro's law.

It is mathematically expressed as;

             PV = nRT

where P is the pressure

           V is the volume

          R is the gas constant

          T is the temperature

          n is the number of moles

All the parameters are in the appropriate units and we simply solve for the volume of the gas;

                1 x V = 0.25 x 0.0821 x 273

                      V  = 5.6L

4 0
3 years ago
Lots Of points 30!!!!!!!!!!!
aivan3 [116]

Answer: i feel it should be c

Explanation:

3 0
3 years ago
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CAn you help me with this question on abiotic and biotic
Natasha2012 [34]

biotic and non living

8 0
3 years ago
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