Which one of the following is NOT a domestic animal?
Buffalo
Cow
Leopard
Horse
Which one of the following are the substances that are present in the soil and required for the growth of crops?
Manures
Pesticides
Fertilisers
Nutrients
Which one of the following activities requires the presence of air?
Burning
Respiration
Flying aeroplanes
All of the above.
Growing different types of crops in a piece of land in different season is called
mono-culture
irrigation
crop rotation
manuring
Most of the metals are found
in the wood of trees
on the top of mountains
deep inside the earth
dissolved in water
If,P - food
Q - air
P and Q Only
P, Q and R Only
P and R Only
Q, R and S Only
Which one of the following present in the soil is most helpful to the growth of plants?
Humus
Sand
Clay
Small porous rocks
Which one of the following is NOT a natural resource?
Soil
Plants
Iron
Paper
Garden soil is most suitable for plant growth because
it contains humus which makes the soil fertile
it holds enough water for plants to grow
its loose soil texture contains
all of the above
Deforestation will cause
1 and 2 only
1 and 3 only
2 and 3 only
1, 2 and 3
