A.Osmosis occurs through a semi permeable membrane. Diffusion occurs in permeable membrane.
Answer:
1. Wind
When strong winds blow, the topsoil along with the organic matter is carried away by the wind. This happens more often when the land is not covered with grass or plants. Such conditions are very common in desert and semi-desert regions where strong winds blow very frequently.
2. Water
When it rains in the hilly areas, the soil gets washed away towards the plains. The running water deposits the mineral-rich soil in the riverbed and over the years this deposition of soil can change the course of the river. This can lead to floods which cause the destruction of life and property. Water erosion leads to loss of agriculture potential.
3. Overgrazing
When cattle are allowed to graze on the same field repeatedly, all the available grass, including the roots are eaten by them. This makes the topsoil vulnerable to wind and flowing water, leading to soil erosion.
4. Deforestation
Humans have taken land from the forest to cultivate in order to feed the ever-increasing population and to build houses, industries, etc. Cutting down of trees on a large scale for these purposes is deforestation. The roots of trees hold the soil together, thus preventing the soil from getting uprooted. When large areas of the forest are cleared, the topsoil gets eroded by wind and flowing water.
support me
Answer:
E. A, B, and C are correct answers.
Explanation:
A male reproductive system is an organ system that produces sperm also called the male gamete. the male organ consists of two main structures which are penis and scrotum.
A female reproductive system is an organ that produces female gametes. it is a place where the male drops their sperm for fertilization during sexual reproduction.
a very A major difference between the human male and female reproductive tracts is the
- Temperature at which gamete production occur
- the location of the gonads
- also the fact that the scrotum houses testes and the ovaries are covered by protective capsule.
That is why i chose E because A, B and C are the correct answer.
