Which of the following is the most serious effect of water pollution for humans?
a.
infectious diseases
b.
algal blooms
c.
toxic food chain effects
d.
low-oxygen water

The correct answer is (a) Infectious disease. Many infectious disease such as Typhoid, Malaria, Dysentery, Jaundice, Cholera is caused due to consumption of polluted water. Water borne diseases contributes to a large number of deaths every year. Chemicals and pesticides present in water also causes severe disease such as cancer due to the pressence of carbonates and organophosphatase in it. Nitrates and arsenic can cause problem in liver. As a result of all this water pollution is very injurious to health.

im gonna compare the cells to jobs in factory. give brainliest

job in the factory //       cell organelle   //  

shipping/receiving

department                 plasma membrane    

chief executive officer// nucleus

factory floor // cytoplasm

assembly line// endoplasmic reticulum

workers in the assembly line //ribosomes

finishing/packaging department //golgi apparatus

maintenance crew //lysosomes

support beams (walls, ceilings, floors) //cytoskeleton

power plant //mitochondria/chloroplasts

here's what each part of the cell does:

plasma membrane :

regulates what enters and leaves the cell; where cell makes contact with the external environment

nucleus :

controls all cell activity; determines what proteins will be made

cytoplasm :

contains the organelles; site of most cell activity

endoplasmic reticulum:

where ribosomes do their work

ribosomes :

build the proteins

golgi apparatus :

prepares proteins for use or export

lysosomes :

responsible for breaking down and absorbing materials taken in by the cell

cytoskeleton :

maintains cell shape

mitochondria/chloroplasts :

transforms one form of energy into another