Answer:
ocean covers 71 percent of the earth
Hmm, I will come back to this one just to help. :)
Answer:
The level of seed in each feeder
Explanation:
The independent variable is the variable which is the suspected cause of an observation, it is the variable that produce the effect observed in the dependent variable. The dependent variable is the variable that is measured
The independent variable is normally the x-value while the dependent variable is the y-value
In the question, Lana wants to find out the kind of birdseed that the neighborhood birds like (to eat) the most by feeding them different types of birdseed and measuring the level of the birdseed in the feeders at regular intervals
the independent variable is the bird seed types which Lana gives to the birds, to determine the type of bird seeds the birds like
The dependent variable is the level of the seed in the feeder which depends on the type of seeds the birds like.
Answer:
The minimum no. of turns is 
Explanation:
Given:
Magnetic field
T
Frequency
Hz
Area of turn

Voltage
V
From the formula of induced emf,

Where
and 
So number of turn is,



Therefore, the minimum no. of turns is 