Majority of erosion on Earth is caused by water Rivers form V-shaped valleys with steep sides Water is the number one cause of erosion on Earth. It can cut through rock creating deep V shaped valleys. Water can transport sediment thousands of miles.
Answer:
The greenhouse effect:
The process in which gases in the atmosphere trap heat from the sun and warm the Earth. is the natural warming of the Earth’s atmosphere Solar radiation enters the atmosphere mainly as light and some of that radiation is absorbed by the Earth’s surface then changed to heat that is reradiated into the atmosphere where it is absorbed by greenhouse gases then reradiated back to Earth again
Answer:
B. helping the seeds to be scattered in new areas to grow.
Explanation:
- The scattering of seeds away from the parent plant is termed as seed dispersal and there are several mechanisms by which seeds can be dispersed, some of the means include gravity, wind, water, animals, etc.
- Seeds that have spiky structures such as hooks or claws are usually dispersed by animals.
- These spiky structures help the seeds to attach to the animal's fur or a feather and also to the bags or clothes of humans and thus, the seeds get scattered to new places along with the animals as they rub the seeds off their body or they fall on their own.
- Thus, <em>the spiky structure of seeds benefits the plant by as it helps in the dispersal of seeds and the plant can thus, grow in new areas.</em>
Answer:
Water can diffuse across a selectively permeable membrane in a process called osmosis. Osmosis in cells is a form of facilitated diffusion. ... But the cell membrane contains channel proteins that only water molecules can pass through. Osmosis allows cells to maintain water balance as their environment changes. it realates to hemeostasis Cellular homeostasis involves maintaining a balance of several factors that make a cell healthy. The cell membrane is a lipid bilayer that prevents the passage of water and ions. This allows cells to maintain a higher concentration of sodium ions out the outside of the cell.
Explanation:
Answer:
a) Most alcohol is metabolized in the small intestine.
b) Food in the stomach slows the absorption of alcohol.
c) Alcohol inhibits the release of anti diuretic hormone, which can lead to dehydration.
Explanation:
About 80 % of alcohol is absorbed by the stomach while 20 % of alcohol is absorbed by stomach. Food materials such as lipids etc slow down alcohol absorption by the intestine because the valve that is present between stomach and small intestine is closed if food is present in the stomach. Alcohol decreases the release of anti diuretic hormone, so low water is removed from the body and reduce dehydration.