Of the following;
a-erosion
b-volcanic eruption
c-ocean circulation
d-climate
The answer is; B
A volcanic eruption is caused by the energy deep in the earth. The heat from the heats up the ricks into magma that ascends up into the crust through vents and erupts. The differential heating of the earth by the sun is significant in driving ocean circulations and climate too. The uneven heating of rocks causes the rocks to weather.
They are considered so because are the indispensable parts of the nature cycle.Without formation,decay cannot be possible and similarly,formation cannot be possible without decay.In addition to this,THEY ARE IN A CHRONOLOGICAL MANNER SET BY NATURE and that's why cannot be seperated and so together constitute the cycle of nature.
Answer:
Explanation:Cell membranes act as barriers to most, but not all, molecules. Development of a cell membrane that could allow some materials to pass while constraining the movement of other molecules was a major step in the evolution of the cell. Cell membranes are differentially (or semi-) permeable barriers separating the inner cellular environment from the outer cellular (or external) environment.
Water potential is the tendency of water to move from an area of higher concentration to one of lower concentration. Energy exists in two forms: potential and kinetic. Water molecules move according to differences in potential energy between where they are and where they are going. Gravity and pressure are two enabling forces for this movement. These forces also operate in the hydrologic (water) cycle. Remember in the hydrologic cycle that water runs downhill (likewise it falls from the sky, to get into the sky it must be acted on by the sun and evaporated, thus needing energy input to power the cycle)
A) Stem cells can be stimulated to develop into any cell type
The right answer would be b because as you learn more about it then it will become more clear