Ecosystem: Questions And Answers: Notes: Multiple Choice Questions

Instructions: The test consists of 50 multiple choice questions. Students are to answer all questions by ticking or circling the correct option against each of the item
Time: 1 hr
1. Organisms in any ecosystem lives in a particular place or region called ………………………………….
(a) Terrestrial habitat (b) Home(c) Habitat (d) Population (e) Aquatic habitat
2. Biosphere is made up of the following (a) Lithosphere, mesosphere, hydrosphere (b) Hydrosphere, thermosphere, xerosphere (c) Lithosphere, Atmosphere, Hydrosphere (d) Atmosphere, Thermosphere, Troposphere (e) Mesosphere, hydrosphere,Atmosphere
3. Ecosystem consists of …………………………
(a) Biotic and animal only (b) Biotic and abiotic only (c) Abiotic and leaves only (d) Biotic and oxygen only (e) Abiotic

The main source of energy on earth is (a) Electricity (b) Sun (c) Fire (d) machine (e) light meter
14. The transfer of energy and nutrient (food) from organism to organism in a feeding pathway is known as ……………………………..
(a) Food web (b) Pyramid (c) Food chain (d) Tropical level (e) Energy flow
15. Ecological Pyramid is made up of pyramid of ………………… (a) Biomass, autotrophy and energy (b) Numbers, biomass and energy (c) Numbers, web and chain (d) Biomass, desert and energy (e) energy, chain and numbers
16. Which of the following is a correct food chain ………………
(a) Grass Zebra Lion Man
(b) Grass Grasshoppers Toads Lizard Hawks
(c) Frog Fish crayfish
(d) Man Lion Goat Grass
(e) Snake man flog Goat 17. In the process of energy transformation, during photosynthesis
(a) All energy from the sun is used up
(b) only part of the solar energy is used up
(c) Energy is released to the atmosphere
(d) Energy is transmitted
(e) Energy is transported
18. Which of these statements is true?
(a) Consumers destroy energy by feeding on the

One of these is a sampling technique?
(a) Capture ramdomly (b) Use of stone (c) Use of quadrat (d) Use of trap (e) use of dominant trap 32. The organism that appears more frequent after several sampling is called
(a) Dominant specie (b) Endangered species (c) Resistance specie (d) Density species (e) enlarged species

33. One of the following factors may lead to increase in population
(a) emigration (b) maternity (c) mortality (d) war/disasters (e) competition
34. The following factors can cause food shortage except ………………….
(a) over population (b) soil erosion (c) floods (d) under-population (e) fire outbreak
35. Which one of the following is the instrument used for measuring wind speed? (a) A rain gauges (b) A wind vane (c) An anemometer (d) A hygrometer (e) hydrometer
36. Light meter is used to measure ……………………..
(a) light intensity (b) water (c) light wave (d) brightness (e) radiation
37. Thermometer is use for measuring…………. (a) speed of rain (b) temperature (c) rain volume (d) temperate gauge (e) wind direction
38. The amount of rainfall is measured with a ……………………..
(a) rain gauge (b) thermometer (c) rain wave (d) rainometer (e) hygrometer 39. Which of these is a living ecological