c) Soil
A. MCQ-
1. Karl Marx was born in
a) 1812 b) 1830 c) 1818
d) 1845
2. Soil pollution occurs when harmful substances are released into the-
a) Air
b) Water
d) None
3. Who invent printing-
a) Louis Braille b) Johannes Gutenberg c) Elbert Einstein d) None of above
4. Sudden movement deep inside the earth caused-
a) Flood b) Earthquake c) Drought d) Snowfall
5. Which instrument is used to makes very small objects look big-
a) Stethoscope b) Microscope C) X-Ray machine d) None of above​