Answer:
By closed contours with hachures
Explanation:
A sinkhole is a depression in the ground that forms when water erodes an underlying rock layer.
Sinkholes are denoted by closed contours with tick marks (hachures) that point towards lower ground.
The topographical map below shows the difference between the contours of a hill and those of a sinkhole.
Empirical formula is a formula that gives the proportions of the elements present in a compound, but not the actual numbers or arrangement of atoms
Ignition transformer
1.
Weight of the transformer is more.
2.
Voltage output of the transformer is from 10,000 volts
to 14,000 volts.
3.
Due to lower voltage output, fuel vaporization and
ignition will be slow.
4.
When there is a drop in voltage supply, the transformer
gets affected.
5.
Consumption of electricity is more.
Solid state igniter.
1.
Igniter weighs very light
2.
Igniter giver voltage output in the range of 14,000
volts to 20,000 volts
3.
Higher voltage output leads to faster vaporization of
fuel and ignition
4.
Very small affect is observed when there is a voltage
drop.
5.
Less electricity is consumed.
