Kevin's family owns a farm. over the past few months, the farmland has shown signs of soil erosion and contamination, which resulted in dead crops. which discipline can environmental scientist study this problem? -electrical engineering -soil science -human health sciences -environmental engineering

Soil scientists develop methods to preserve the fertility of the soil and to decrease the effects of erosion on productivity. Environmental engineering will also help environmental scientists in studying this problem as they use the principle of engineering, soil science, biology and chemistry to develop the solution to the environmental problems.    

soil science

Explanation:

This soil science can help in studying the composition and classification of the soil of the farm including its physical, chemical and biological properties. Also from the analysis you can propose solutions to decontaminate the soil and fertilize it for healthy corn growth.

The edaphology that is a branch of soil science studies the composition and nature of the soil in its relationship with plants and the surrounding environment. It would be useful in this case.

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus

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.