All categories

3 years ago

What approximate percentage of the Earth’s freshwater is groundwater?

Chemistry

2 answers:

Andre45 [30]3 years ago

8 0

Answer:

The correct answer is c. 30%

Explanation:

Groundwater is that found below the earth's surface. Groundwater is contained in aquifers. An Aquifer is a geological formation or a part of it, consisting of a permeable material capable of storing a certain significant amount of water. Aquifers can consist of different material, such as sedimentary permeable rocks such as sand stones or mud stones.

In general, it maintains a temperature very similar to the annual average in the area, therefore, in arctic regions, it can freeze.

Groundwater represents around 30% of the world's fresh water.

The correct answer is c. 30%

grigory [225]3 years ago

4 0

the answer is c.) 30%

You might be interested in

Mary and her siblings share similar hair color. Which of these cell components are most involved in determining the hair color o

aksik [14]

The question is incomplete, the complete question is;

1. Mary and her siblings share similar hair color. Which of these cell components are most involved in determining the hair color of each sibling?

Gene, Chromosome, Nucleus

Cytoplasm, Chloroplasts,Genes

Vacuoles, Nucleus, Chromosomes

Chromosomes, Chloroplasts, Vacuoles

Answer:

Gene, Chromosome, Nucleus

Explanation:

Gene is defined in biology as "a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring" (Oxford Dictionary).

The gene is located in the chromosomes in the nucleus of cells. The sum total of the genes that an organism inherits from its parents is called the organisms' genotype and determines certain features of the organism.

The hair colour of Mary and each of her siblings depends on the genes they received from their parents.

7 0

2 years ago

Which of the following is the poorest conductor electricity

mojhsa [17]

Answer:

Fluorine

Explanation:

It is a non-metal does not conduct electricity

5 0

2 years ago

WILL GIVE BRAINLIEST

seropon [69]

Answer:

Chemical reaction A, because the reactant is a compound

Explanation:

In a decomposition reaction, a compound is broken down into its components, so the number of products is greater than the number of reactants

3 0

1 year ago

When something is in the incorrect to state that a compound is broken down into its component elements in a decomposition reacti

zzz [600]

.........................

7 0

3 years ago

Vanillin is the compound containing carbon, hydrogen, and oxygen that gives vanilla beans their distinctive flavor. The combusti

nignag [31]

70.4 mg CO2 x 1.0 g /1000 mg x 1 mole CO2/ 44 gCO2 x 1 mole C/1 mole CO2 = 0.0016 moles C 14.4 mg H2O x 1.0 g/1000 mg x 1 mole H2O/18 g H2O x 2 moles H/ 1 mole H2O = 0.0016 moles O molar mass of C=12 g/mole molar mass of H=1 g/mole 0.0016 moles C x 12 g C/ 1 mole C = 0.0192 g C or 19.2 mg C 0.00156 moles H x 1 g H/1 mole H = 0.00156 g H or 1.56 mg H mg O= 30.4 mg vanillin - 19.2 mg C â€“ 1.56 mg H = 9.64 mg O molar mass of O=16 g/mole 9.64 mg O x 1 g/1000 mg x 1 mole O/16.0 g = 0.000602 C.0016 H.0016 O.000602; divide all the moles by the smallest value of0.000602 C2.66H2.66O1 is the empirical formula; to obtain whole numbers multiply by 3 3[C2.66H2.66O1] = C8H8O3 above formula weight: 8(C) + 8(H) + 3(O) = 8(12) + 8(1) + 3(16) = 152 amu The empirical formula weight and the molecular formula weight are the same . Molecular formula is C8H8O3.

7 0

3 years ago