Reason: In a healthy individual 5. Read the following and answer any four questions from 5 (i) to 5 (v):
Harmful and toxic chemicals enter our bodies when they are added to the soil
and water. Pesticides are used to protect the food crops from diseases and
pests, and chemical wastes from the factories are dumped in open or disposed
off in to rivers. These chemicals are washed down into the soil and are ultimately
taken up by plants and thus enter the food chain.
5(1). What will be the concentration of these chemicals at each trophic level in a
food chain?
5(ii). Justify your answer with one reason.
5(iii). What is the above phenomenon known as?
5(iv). Construct a food chain showing the amount of toxic chemicals at each
trophic level.
5(v). Give two examples of such toxic chemicals commonly used by farmers.

the transfer for conduction is the heat transfering from the liquid to the spoon

the transfer for convection is the heat rising from the liquid to the air

the transfer for radiation is the heat going through the sides of the cup and to the air

at least that is what i would do

ur answer is e & d

explanation:

about 40,000,000 results (0.81 seconds)  

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?