Question

OL
7. Burning of coal and wood is causes
8. Migratory birds fly to far away places because of. slin. changes.
Q.2 Choose the correct option.
1......... involves removal of unwanted and uncultivated plants.
a) weeding b) threshing c) harvesting d) plough
2. The process of conversion of sugar into alcohol is called ...
a) nitrogen fixation b) moulding syfermentation d) infection
3. Fibres are prepared using petroleum origin is called
a) petrochemical b) acrylic ) synthetic fibres d) thermosetting plastics
4. The property of metals by which they can be beaten into thin sheets is calle
a) ductility
b) malleability
c) hardness
5. Commercial name of sodium bicarbonate is....
a) baking soda b) salt
c) kerosene d) coal
6. LPG stands for
a) light petroleum gas b) liquefied petroleum gas c) low petroleum
7. The plants found in a particular area are termed as
a) fauna b) flora c) endemic species d) endangered plants
0.3 True and false.​

Answer 1

7.pollution 8.migration. Q 1.weeding 2.fermentation 3.petrochemical 4.melleability 5.baking soda 6.liquified petroleum gas 7.flora hope that helps!