Natural Resouces

Gap-fill exercise

  
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
1. Aquatic animals use oxygen present in water for respiration.
2. is produced due to breaking of rocks at or near the surface of earth due to various factors.
3. The present in the soil depend upon the type of rocks from which it is formed.
4. Excessive use of and pesticides directly results in soil pollution.
5. Washing away of soil particles and exposure of underneath rocks is known as .
6. Conversion of inorganic or organic nitrogenous compounds to ammonia is known as .
7. Rhizobium is found in root nodules of plants.
8. Pseudomonas is an example of bacteria.
9. Nitrosomonas and Nitrobacter helps in process in Nitrogen cycle.
10. Carbon is incorporated into living forms through the process of in plants.