Advantages:
>No cables needed.
>Multiple channels available.
>Wide bandwidth.
Disadvantages:
>Line-of-sight will be disrupted if any obstacle, such as new buildings, are in the way.
>Signal absorption by the atmosphere. Microwaves suffer from attenuation due to atmospheric conditions.
>Towers are expensive to build.
Answer: 1200
Explanation:
If it was 1250 J of work done, and a object that weights 50 N, you subtract 50 from 1250 which is 1200 J. Work has been done, so you subtract the high number from the lowest.
Answer:
Arteries never carry oxygen rich blood
Explanation:
This is totally wrong as most Arteries carry oxygenated blood away from.the heart to other organs and structures. Only the pulmonary artery carries deoxygenated blood to the lungs for oxygenation
Answer:
Bryophytes is a small flowerless green plant of the division Bryophyta, which comprises the mosses and liverworts.
Any two characteristics of pteridophyts are:
They are seedless, vascular plants that show true alternation of generations.
They reproduce by spores, which are developed in sporangia.
