Users make payments electronically than in person. Electronic payments have been made to provide a secure internet transaction. It is usually in 4 categories namely credit card,debit card, micropayment system and electronic cash. The answer in the situation where Lina switch to new provider for the online payment system is due to self-service.
Answer;
Evaporation is when water vapor comes from liquid surface water, such as streams, lakes, rivers, and oceans. ... Transpiration is when water vapor comes from liquid water excreted by plants. Plants 'breathe' by exchanging carbon dioxide for oxygen through small openings in their leaves called stomata during photosynthesis.
The disturbance is perpendicular to the direction of the wave motion (propagation direction).
Best visualized on a rope whose one end you start agitating. This gives rise to waves running (propagating) forward, away from that end. While that is happening, if you look at the individual points on the rope you will see that they are not moving in the forward direction but rather they oscillate up and down (disturbances). The up-down direction is perpendicular to the direction of the forward wave propagation.