Natural resources Worksheet-5

Natural resources Worksheet-5


  1. Which of the following is an example of detrivorous organism?

A. Liver fluke                                 B. Millipede

C. Round worm                            D. Tape worm


  1. Which is the largest particle of soil?

A. Gravel            B. Sand              C. Silt                  D. Clay


  1. Which type of soil has good water holding capacity and porosity to allow aeration of roots?

A. Sandy            B. Clayey            C. Loamy           D. All of these


  1. Detritus are:

A. Dead remains of plants and animals

B. Excreta of detrivores organisms

C. Food of decomposers

D. Fossils


  1. Soil is the component that comprises :

A. Hydrosphere                            B. Atmosphere

C. Lithosphere                              D. All of these


  1. Acid which is not present in acid rain is:

A. Hydrochloric Acid                   B. Sulphuric Acid

C. Nitric Acid                                D. All of these


  1. Which of the following component in marble stone reacts with acids present in acid rain?

A. Sodium carbonate                   B. Sodium Bicarbonate

C. Potassium carbonate              D. Calcium carbonate


  1. Snow is :

A. Frozen water                            B. Frozen water vapour

C. Dry ice                                       D. none of these


  1. Biological weathering of rocks is caused by:

A. Lichens                                      B. Roots of plant

C. Mosses                                       D. All of these


  1. Air pollution is not caused by:

A. Hydroelectric power plant    B. Thermal power plant

C. Radio active power plants     D. Automobiles


Answer Key:

  1. B
  2. A
  3. C
  4. A
  5. C
  6. A
  7. A
  8. B
  9. D
  10. A