1 |
The amount of fresh water on the Earth is |
about 1 %
about 30%
about 70%
about 90%
|
2 |
What is therole of living organisms in the soil. |
Making soild soft and airy
Making soil hard
Make soil unfit for cultivations
Making the air dry
|
3 |
Which type of soil is good for growth of plants. |
Sand
Silt
Clay
Rock
|
4 |
What are the main types of the soil? |
Silt, Sand and rock
Clay, humus and sand
Sand, silt and clay
silt, humus andclay
|
5 |
The outer layer of the Earth is called. |
External core
Mantle
Crust
Inner core
|
6 |
the direction fo the Qibla is determised by |
Electromagnet
Emitter
Magnetic compass
Amature
|
7 |
In which things of the following electric magnetic does not pull towards itself. |
Iron
Nickle
Wood
Cobalt
|
8 |
An example of a static charge loss. |
Lightning
Cell current
Electric current
All of these
|
9 |
When we rub plastic comb in our dry hair, then becomes positive charge an. |
Comb
Hair
Comb and hair
None of these
|
10 |
The maximum amount of electric currentthat a fuse can pass through is called. |
Limit
Amout
Rating
Strength
|