Which of the following is caused by the higher concentration of Nitrogen and Phosphorous? 

From the peak of a hill which is 300m high, the angle of depression of two sides of a bridge lying on a ground are 45° and 30° (both ends of the bridge are on the same side of the hill). Then the length of the bridge is 

This device is the communication medium for the entire computer system and placed in the system unit. Identify the device.

Direction: Read the passage carefully and choose the best answer to each question out of the four alternatives.
The beauty of the Japanese landscape is that it conveys philosophical messages through each feature. The use of curving pathways rather than straight lines, for instance. This feature springs from the belief that only evil travels in straight lines, good forces tend to wander. Then, odd numbers of plants and trees are used in these gardens because these numbers are considered auspicious. Even the plants used are symbolic. For example, the Cyprus represents longevity and the bamboo symbolises abundance,’ says Sadhana Roy Choudhary.
The Japan, nature is said to be so closely intertwined with human life that parents actually plant a sapling in their garden when a child is born in the family, letting the growth of the child coincide with the growth of the plants.

The Japanese pathways tend to be ____