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Biology 10th Class English Medium Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | Which one of the following is not a temporary parasite? | Mosquito Virus Leech Bed bug |
| 2 | The utilization of nitrates by organisms is called. | Nitrification Ammonification Assimilation Denitrification |
| 3 | ________ is break down of the proteins of dead organisms to ammonia. | Ammonification Nitrification Denitrification None of these |
| 4 | Nitrogen is an important component of: | Proteins Nucleic acid Lipids Both a and b |
| 5 | The major process that brings carbon from atmosphere into living world is: | Photosynthesis Respiration Both a and b None of these |
| 6 | Which one of the following is not an example of fossil
fuels? |
<p class="MsoNormal">Plants<o:p></o:p></p> Peat Coal Natural gas |
| 7 | _________ atom is the principal building block of many kind of biomolecules. | Oxygen Carbon Hydrogen Nitrogen |
| 8 | In 1927,................ developed the concept of ecological pyramids. | Kelvin Lamark Charles Elton Charles Darwin |
| 9 | The base of food chain is always formed by: | Producers Consumers Decomposrs Heterotrophs |
| 10 | The materials flow from one trophic level to the next by means of: | Food chains Food web Both a & b None of these |
| 11 | ______ get solar energy and transform it into chemical energy by the process of photosynthesis. | Decomposers Producers consumers Predators |
| 12 | The thickness of biosphere is: | 02 km 20 km 50 km 200 km |
