a solenoid 0.2m long has 1000 turns of wire and is oriented with its axis parallel tp the earth's magnetic field at a place where the latteris 25 micro tesla. what should be the current in the solenoid in order that the field exactly cancels the earth's field inside the solenoid?

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step-by-step explanation:

step-by-step explanation:

this is not a question

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.  

answer:

a=9

step-by-step explanation: lmk if you need a explanation