Scientific notation for 0.000468

Scientific notation for 0.000468 is 4.68 x 10-4.

Explanation:

Scientific notation is a method in which a very big or very small value is written in short form. In scientific notation, the point goes from left to right, the power is negative while when the point goes from right to the left, the power is positive.

option a is correct i.e.

explanation:

in context to the membrane of nerve impulse, the outer membrane of neuron is semi permeable that is only sodium ions can pass through the membrane i.e. smaller ions can pass through the membrane while larger ions cannot pass through it.

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.