What part of the earth's surface is occupied by the oceans?
17%
40%
60%
71%
Answer: d
Which flow called warm?
One in which water is warmer than 0 ° C
One in which water is warmer than 20 ° C
One in which water is warmer in the surrounding ocean water
One in which water never freezes
Answer: c
Which units measure the salinity of ocean water?
In grams per cubic liter
Percentage
In ppm
In kilograms per meter cubic
Answer: c
What is the name of the river valley, constantly occupied by water flow?
Flood bed
Channel
Terrace
Estuary
Answer: b
Factors depend on which tidal height?
Soundings
From the relative positions of Earth, Moon and Sun
From the time of year
From coast line
Answer: a, b, d
What is the maximum height of tides in the ocean?
Over 18 m
About 10 m
Not more than 0,5 m
Answer: a
How does the temperature of the ocean to a depth of 700 meters?
Virtually unchanged
Constantly decreasing
Continuing increases
Reduction and increase in temperature alternating
Answer: b
Which of the statements is wrong?
Near the bottom of the ocean water is colder, because there does not penetrate the sun's rays
At great depths all the water has the same temperature, close to 0 ° C
Near the bottom of the water getting warmer, because the substance is heated with warm mantle that overlies relatively shallow
Answer: a
What are the aggregate states characteristic of water?
Gaseous
Liquid
Viscous
Solid
Answer: a, b, d
As the process called when water evaporating over the ocean, and transferred on dry land after the loss of surface flows into the ocean on the surface or underground prosochuyuchys?
Flow
Seepage
A small circuit
Great circulation
Answer: d
As called solid performances over the rocks down the river in separate blocks of stone?
English