Which of the following belongs to the group of cold currents ?

i.Peru currents

ii.Oyashio currents

iii.Benguela currents

What are the effects of tides?.List out the following:

i.The debris dumped along the sea shore and ports are washed off to the deep sea.

ii.The formation of deltas is disrupted due to strong tides.

iii.Brackish water can be collected in salt pans during high tides.

iv.Tidal energy can be used for power generation.

What are  the effects of ocean currents?.List out from the following:

i.Influence the climate of coastal regions.

ii.Fog develops in the regions where warm and cold currents meet.

iii.The regions where the warm and cold currents meet provide favourable conditions for the growth of fish.