Permafrost soil (gelisol) is _______.a. resistant to erosion
b. fragile
c. rich in microorganisms
d. a fast developing soil

Answers

Answer 1

Answer: Permafrost soil (gelisol) is b. fragile. Permafrost soil is a region of the Earth's surface (ground or soil) that is at a temperature below freezing temperature. This makes it very brittle and sensitive to heat exposure, making it very fragile. This is often found in countries where the climate is very cold such as Canada etc.

Answer 2

Answer:

Answer:

Explanation:

Fragile & Edge 2020

Related Questions

How do hydrogen atoms make a covalent bond?
Water is called the “universal solvent.” Which statement best explains this description with respect to ionic compounds?
What is a Benedict solution?
The chemical reaction in which compounds break up into simpler Constituents is a.
If a straight-chain hydrocarbon is a gas at room temperature, how many carbon atoms will it have?A. 6 carbon atomsB. 12 carbon atomsC. 24 carbon atomsD. 3 carbon atoms

The correct, chemically balanced equation for photosynthesis is: A. 12CO2 + 6H2O + RADIANT ENERGY -> C6H12O6 + 12O2. B. 6CO2 + 12H2O + RADIANT ENERGY -> C6H12O6 + 6H2O + 6O2. C. 12O + C6H12O6 + 6H2O -> 6CO2 +12H2O + ENERGY. D. 12O2 + C6H12O6 + 12H2O -> 6CO2 + 12H2O + ENERGY. E. 6O2 + C6H12O6 + 6H2O -> 6CO2 + 12H2O + ENERGY.

Answers

Answer:

The correct, chemically balanced equation for photosynthesis is: b. 6CO2+12H2O+radiant energy -> C6H12O6+ 6H2O+6O2

Explanation:

Photosynthesis is the synthesis of a compound which is more complex than CO2, O2 and H2O. It requires the presence of radiation/sunlight. Therefore, c, d, and e are incorrect. C6H12O6 is produced in the photosynthesis, not decomposed. O2 is generated in the photosynthesis. Analyzing both a and b, the only chemically balanced equation is b. The option a has an excess of carbon that is not reflected on the right side of the equation.

NEED HELP ASAP PLEASEWhich of these compounds is covalently bonded?
Select one:
a. KF
b. MgF2
c. NO2
d. Na2S

Answers

C. NO2 is covalent. Hope this helps!

What is the difference between an atom in the ground state and an atom in an excited state? A. The atom in the ground state has less energy and is less stable than the atom in an excited state. B. The atom in an excited state has one fewer electron than the atom in the ground state. C. The atom in an excited state has more energy and is less stable than the atom in the ground state. D. The atom in an excited state has one more electron than the atom in the ground state.

Answers

The correct option is C.

An atom can be either in the ground state or in an excited state. An atom is said to be in the ground state, if the total energy of its electron can not be lowered by moving one or more electrons into different orbitals. At the ground state, the electrons in the atom have the lowest energy possible and they are stable. On the other hand, an atom is said to be in an excited state, if the energy of its electrons can be lowered by transferring one or more electrons into different orbitals. An atom in an excited state has more energy and is less stable.

The difference between an atom in the ground state and an atom in an excited state is being revealed by the third option C. The atom in an excited state has more energy and is less stable than the atom in the ground state.

Which of the gases listed below would not be collected via water displacement?a. CO₂
b. CH₄
c. O₂
d. NH₃
e. H₂

Answers

D is the answer I do believe

The answer is D) NH3

Which type of molecule is produced during photosynthesis A.monosaccharide
B.triglyceride
C.protein
D.Polypeptide

Answers

Answer

monosaccharide

Explanation

Consider the solutions, 0.04 m urea [(NH2)2C=O)], 0.04 m AgNO3 and 0.04 m CaCl2. Which has (i) the highest osmotic pressure, (ii) the lowest vapor pressure, (iii) the highest boiling point?

Answers

Answer:

i) Highest osmotic pressure: CaCl2

ii) lower vapor pressure : CaCl2

iii) highest boiling point : CaCl2

Explanation:

The colligative properties depend upon the number of solute particles in a solution.

The following four are the colligative properties:

a) osmotic pressure : more the concentration of the solute, more the osmotic pressure

b) vapor pressure: more the concentration of the solute, lesser the vapor pressure.

c) elevation in boiling point: more the concentration of the solute, more the boiling point.

d) depression in freezing point: more the concentration of the solute, lesser the freezing point.

the number of particle produced by urea = 1

the number of particle produced by AgNO3 = 2

the number of particle produced by CaCl2 = 3

As concentrations are same, CaCl2 will have more number of solute particles and urea will have least

i) Highest osmotic pressure: CaCl2

ii) lower vapor pressure : CaCl2

iii) highest boiling point : CaCl2

Final answer:

The solution with the highest number of particles in solution (CaCl2 in this case), experiences the highest osmotic pressure, lowest vapor pressure and highest boiling point due to the principles of colligative properties.

Explanation:

The question pertains to the colligative properties of solutions, which would be governed by the number of particles in the solution. The solutions are 0.04 m urea [(NH2)2C=O)], 0.04 m AgNO3, and 0.04 m CaCl2. For (i) Highest osmotic pressure, the solution with the highest ion count would yield the highest osmotic pressure. CaCl2 dissociates into three ions (Ca²+, and 2 Cl¯), therefore, it would exhibit the highest osmotic pressure. For (ii) Lowest vapor pressure, this would coincide with the solution with the highest osmotic pressure, again making it CaCl2, due to the greatest decrease in vapor pressure. For (iii) the highest boiling point, this too would be CaCl2 for the reasons stated above. The presence of more particles in a solution interferes more with the evaporation process, requiring more energy (higher temperature) to achieve boiling.