Questions

An anti-lock braking system (ABS) is a safety anti-skid braking system used on aircraft and on land vehicles , such as cars, motorcycles, trucks and buses.

ABS is only on the front wheels and it can improve your ability and the stability of your car by keeping the front wheels from locking under severe braking it will allow the wheels to continue to roll so the car can stop straight and stop as safe and as soon as possible

Half the Product of Number in the upper & lower box gives the number in the middle box.

i.e. 18 x 4/2 = 36

15 x 6/2 = 45

In the same way 

8 x N/2 = 44 => N = 11.

The carbon arc lamp was the first widely-used type of electric light and the first commercially successful form of electric lamp.

Here are the Carbon Arc Lamp Uses :

-Super bright light, capable of lighting a large length of street or a large factory interior.

-Was the ONLY electric light available to light large areas from 1800 - 1901.

-Was cheaper to light streets with the arc lamp than gas or oil lamps.

Hybridisation of iodine is sp3d3

So, the structure is pentagonal bipyramid.