How does removing trees affect nitrogen cycling in a forest ecosystem? A. After clearcutting, more soil nitrogen was exported vi
a runoff, ultimately accumulating in the lake. B. After clearcutting, plant uptake stopped and nitrogen accumulated in the soil. C. After clearcutting, plant uptake stopped but denitrification increased, limiting the flow of nitrogen from the soil to the lake. D. Clearcutting does not appear to affect nitrogen cycling; only acid rain does.
B. After clearcutting, plant uptake stopped and nitrogen accumulated in the soil.
Explanation: Clear cutting leaves the soil bare and allows for direct penetration of sunlight this increases the soil temperature which favors the activity of soil microrganism. This microrganism activity increase the production of ammonium and nitrate hence the increase in soil Nitrogen level. Clearcutting then allows for accumulation of Nitrogen produce due to removal of plant or forest tree that could use up the Nitrogen produced.
Explanation: Osmosis is a process in which water move from an area of low solute concentration to an area of high solute concentration through a selectively permeable membrane. For osmosis to occur, it must be through a selectively permeable membrane. Diffusion is the movement of molecules from an area of high concentration to an area of low concentration.
Totally. Earth's climate systems are driven by the electromagnetic radiation that comes from the Sun. The incoming radiation that comes from the Sun is reflected by the clouds, passes through Earth's surface, or is even absorbed by the planet's atmosphere. The atmosphere warms thanks to the chemical reactions of larger aerosol particles in the atmosphere absorbing this radiation.
