Ecology

Question 1

What is meant by ecology

Answer 1

Number of living organism of same species living in same place

Question 2

Community

Answer 2

Different population in a habitat

Question 3

Habitat

Answer 3

Place where living organism live

Question 4

Environment

Answer 4

Biotic and abiotic factors

Question 5

Ecosystem

Answer 5

Interaction between living organism and their environment

Question 6

Biodiversity

Answer 6

Mesuare of the range of species living in ecosystem

Question 7

Food chain

Answer 7

Diagram shows flow of energy from one organism to next beginning with producers

Question 8

Food web

Answer 8

Network of interconnected food chain

Question 9

Examples of abiotic factor

Answer 9

Temperature, light intensity, windspeed, soilph

Question 10

Example of biotic factor

Answer 10

Diseases,,competition,avability of nutrtion ,predation

Question 11

Producer

Answer 11

Organism makes its own food using energy from sunlight through photosynthesis

Question 12

Consumer

Answer 12

Organism gets it’s energy by feeding on another organism

Question 13

Decomposer

Answer 13

Organisms takes its energy from dead living organism and fungi

Question 14

Herbivore

Answer 14

Takes its energy by eating plants

Question 15

Carnivore

Answer 15

Animal gets it’s energy by eating another animal

Question 16

Tropic level

Answer 16

Position of organism in food chain

Question 17

Pyramid of energy

Answer 17

Shows how much energy gets transfer from one throphic level to another

Question 18

How energy loss in food chain?

Answer 18

Respiration
Egestion
Death
Uneaten parts
Undigested

Question 19

Role of nitrifyfing bacteria(nitrification)

Answer 19

Oxidise ammonia to nitrites to nitrates

Question 20

Role of nitrogen fixing bacteria

Answer 20

Convert nitrogen to ammonia

Question 21

Role of denitrifying bacteria(denitrfication)

Answer 21

Convert nitrates in soil to nitrigen

Question 22

Role of Decomposers

Answer 22

Produce ammonia from nitrogen in protien from dead bodies

Question 23

Example of green house gass

Answer 23

Carbondioxide, watervapour, nitrous oxides,methane, cfcs

Question 24

How to reduce carbondioxide in air?

Answer 24

Less burning of fossil fuel
More deforestation

Question 25

How to limit nitrous oxide?

Answer 25

Reduce burning fossil fuel

Question 26

How to limit methane

Answer 26

1.Reduce amount of rubbish 2.Collect methane to be used as fuel

Question 27

Effect of deforstation

Answer 27

Leaching,soil errosion, less transpiration, disturbtance in balance between carbondioxide and oxygen in atmosphere,destruction of habitats and habitats and extinction of animals

Question 28

Describe process of eutrophication

Answer 28

Overuse of fertillizers cause leaching mineral ions into river cause algal bloom block sunlight,underwater plants not photosynthesis they will dye,nom of decomposers consume oxygen in water cause death of fish

Question 29

Consequences of global warming

Answer 29

Rise of water level in sea due to melting ice cap cause flooding,habitat destruction,climate change and change in rainfull pattern, migration and extinction of animals

Question 30

Describe Environmental pollution of sulfur dioxide

Answer 30

Sulfur dioxide react with water vapour in atmosphere form acid rains

Question 31

Bad affects of acidrains

Answer 31

Increase acidity of soil result in death of plants Damage faeces of buildings Erode waxy cuctile of leaf Inhalation of sulfur dioxide cause asthma and lung damage Increase acidity of lakes lead to death of fish

Question 32

Mention 4 process happen in carbon cycle

Answer 32

Photosynthesis Respiration Combustion Decomposition