. A good friend of yours has informed you of his desire to purchase a plot of land for sugarcane and rice farming. When you decided to dig a soil pedon to know more about the land, you found out that the epipedon is highly eluviated, while the subsurface layers feature oxic soil. What does this tell you about the soil, and what advise will you give your friend?​

I will not recommend this type of soil for farming.

The epipedon is highly eluviated tells us that the nutrients present in the soil is leached out or washed away because of more rainfall in that region. The soil is oxic in which Fe and Al oxide minerals are present in large amount that caused iron or aluminium toxicity in the plant body so I will give the advise to my friend that not to purchase this plot for the farming of sugarcane and rice and purchase another piece of land which is rich in minerals and organic matter.

advantage of using stem cells in medical research:

1.       it provides medical benefits in the fields of therapeutic cloning and regenerative medicine.

2. it provides great potential for discovering treatments and cures to a variety of diseases including parkinson disease, spinal cord injuries, diabetes, alzheimer’s disease and many more.

3. limbs and organ could be grown in lab from stem cells and then used in transplant or treat illness.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.