An example of a land feature formed by river erosion is a. alluvial fans c. soil b. deltas d. oxbow lakes

a. alluvial fans

Alluvial fan is an example of land feature formed by river erosion. It is a triangle shaped deposition of debris containing gravel, sand, silt or any other sediment collectively called as alluvium by flowing stream of water. The deposition of these sediments takes the shape of a fan on the landmass where they get settled. Alluvial fans are usually form when a stream of water flows from a landmass such as mountains or hills. This flowing water leaves the sediments on the surface of landmass.

The correct answer is option A, Alluvial fan

Explanation:

Alluvial fan is usually formed in areas with landscape developed by the deposition of silt, gravel, sand, and sometimes boulders. The way a alluvial fan is formed needs certain necessary conditions such as –  

a)Flowing water

b)Excessive sedimentation

c)Open Plain

d)Erosion and deposition due to topography change and flowing water

All these circumstances are attained in a river erosion process and thus alluvial fan can be  formed due to the process of river erosion

answer; i believe the correct answer is (anemia);

question#1

ans:

cell is the basic unit of organization of all living things. cells are often called the building block of life and it is the smallest unit of life. the study of cell is called cell biology. cell consists of cytoplasm enclosed within membrane, which contain bio-molecules such as proteins and nucleic acid.

two third of cell is water, which means that two-third of your whole body is water. the rest is the mixture of molecules, mainly proteins, lipids and carbohydrates.

question#2

ans:

organ:

an organ is a group of tissues specialized to form a functional unit. an example is the heart in animals.

organ system:

an organ system is a group of several organs whose functions are synchronized to release an effective action in a living organism. an example is digestive system.

question#3

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#4

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system—working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#5

our body works because of the interactions that happen between organs and organ systems.  

for example:  

the heart to regulate blood flow throughout the body. the blood carries oxygen and nutrients to the cells and carries carbon dioxide and waste away from the cells. body systems work together in maintaining a constant internal environment. when this balance is disrupted, the body systems may not function properly, and human health can suffer.   you start to feel bad.