Answer:
Water cycle
Explanation:
The water cycle, also called as the hydrologic cycle that describes the continual flow of water i.e on over and beyond the surface of the Earth.
The nutrient cycle refers to the cycle in which there is a movement and exchange of organic and inorganic matter
Therefore the water cycle is not a nutrient cycle and hence the same is to be considered
Gravity is a force which tries to pull two objects toward each other. Anything which has mass also has a gravitational pull. The more massive an object is, the stronger its gravitational pull is. Earth's gravity is what keeps you on the ground and what causes objects to fall.
Answer: A) The reaction is spontaneous above 276 K.
Explanation:
According to Gibb's equation:

= Gibbs free energy
= enthalpy change = +29.3 kJ/mol =29300 J/mol
= entropy change = +106 J/molK
T = temperature in Kelvin
= +ve, reaction is non spontaneous
= -ve, reaction is spontaneous
= 0, reaction is in equilibrium


for reaction to be spontaneous

Thus the Reaction is spontaneous when temperature is above 276 K.
Answer:
The oxygen atom has a slightly negative charge.
Explanation:
3.5 - 2.5 = 1
For ionic bond electronegativity should be more than 1.6.
So, O and C do not have whole charge. Electronegativity of O more than C, so electrons slightly moved to the oxygen side.
Answer:
"The last digit in any number is referred to as the estimated digit."
Explanation:
So it should be 2