Class 10th Biology Chapter 7/16


Total Marks: 36

1. Which of the following is the abiotic component of the ecosystem?
Producers Herbivores Carnivores Oxygen
2. When we eat onions, our trophic level is:
Primary consumer Secondary consumer Decomposer Producer
3. Identify the correctly matched pair:
Rainfall - biotic factors in ecosystem Global warming - formation of fossil fuels Renewable natural resource - air Corn - Secondary consumer
4. In the food chain tree > caterpillar > robin > hawk > coyote, which is the secondary consumer?
Caterpillar Robin Hawk Coyote
5. In ecosystem, the flow of _______ is one way, while _____ is/are constantly recycled:
Mineral, energy Energy, minerals Oxygen, energy Glucose, wate
6. In the food chain, grass > rabbit > fox > bear > mushroom, how many types of decomposers are present?
1 2 3 4
7. Organisms in the ecosystem that are responsible for the recycling of plant and animal wastes are:
Producers Consumers Decomposers Competitors
8. Which form of Nitrogen is taken by the producers of the ecosystem?
Nitrogen gas Ammonia Nitrites Nitrates
9. Identify the right proportional pair?
Rainfall- biotic factor in Ecosystem Corn- secondary cosumers Global warming Fossil Fuel formating Renewable natural resource - air
10. A symbiotic interaction in which both partners get benefits :
Mutualism Commensalism Parasitims Predation
11. Living of Nitrogen flzing bacteria in the roots nodules of leguminous plants is an example of :
Predation Parasitism Mutualism Commensalism
12. Ectoparasite is :
Ascaris Amoeba Plasmodium Leech
13. Example of endoparasite is ?
Plasmodium Mosquito Leeh Lices
14. Animals do not take nitrogen compounds?
Animals Fungus Virus Plants
15. Coversion of urea and uric acid into ammonia is called ?
Assimilation Nitrogen fixation Ammonification Biological fixation
16. Conversion of the nitrogen gas into nitrates is called ?
Denitrification Nitrogen fixation Assimilation Ammonification
17. At the end of a long food chain the energy will be ?
Will be more As same as a start Will less Zero
18. The source ofmaterials for all the organisms is :
Earth Air Water Graphite
19. Every organism lives under certain conditions known as its :
Environment Ecosystem Atmosphere Biosphere
20. Organisms of the same species living at one place constitute __________:
Community Habitat Population Ecosystem
21. Organisms of the populations of different organisms living in the same :
Community Habitat Population Ecosystem
22. All ecosystem of the world join and make
Spercies Community Ecosystem Biosphere
23. Biosphere surrounding the Earth is about
20 km 22 km 30 km 33 km
24. Which of the following is a biotech component of an ecosystem?
Grass Goat Lion Soil
25. One organism kills and feed on other organism is called.
Predation Parasitism Mutualism Commensalism
26. An example of carnivore plant is
Rose plant Mosses Pitcher plant Ferns
27. A symbiotic interaction in which both partners get benefits
Mutualism Commensalism Parasitism Predation
28. Living of Nitrogen fixing bacteria in the roots nodules of Leguminous plant is an example of.
Predation Parasitism Mutualism Commensalism
29. Maldivas might become Uninhabitable
With in 10 years With in 100 years With in 500 years With in 1000 years
30. Which of the following air pollutant react with water in atmosphere producing acid rain?
Hydrocarbons , Fluorine Flyash , Soot Chlorine , Smoke Sulphure dioxide , Nitrogen oxide
31. A Recycling of One Tonne of paper can save ___________
7 trees 17 trees 27 trees 37 trees
32. Smog forms a yelowish brown haze and hamper visibility during.
Summer Spring Winter Autumn
33. R- 2 means
Reduce Recycle Renewable Reuse
34. R-3 means.
Less use Reuse Recycle Refuse
35. ........... is use for the cleaning of sewage water.
Bacteria Virus Algae Fungi
36. Dengue fever is an infection of.
Algal Viral Fungal Bacterial