abiotic factors

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

Front (Question)

what is our source of radiant energy

Back (Answer)

the sun

Front (Question)

what are all organisms directly or indirectly dependent on

Back (Answer)

the radiant energy from the sun

Front (Question)

what is the greenhouse effect

Back (Answer)

when sunlight warms the earth but the heat can’t escape the atmosphere

Front (Question)

what are the main greenhouse gases

Back (Answer)

carbon dioxide, methane gas and water vapour

Front (Question)

what does the atmosphere consist of

Back (Answer)

nitrogen, oxygen, carbon dioxide

Front (Question)

why is the percentage of carbon dioxide in the atmosphere increasing

Back (Answer)

• more people on earth who exhale carbon dioxide • more vehicles that release carbon dioxide • more factories • more rain forests that are chopped down (fewer green plants that use carbon dioxide for photosynthesis)

Front (Question)

what is wind caused by

Back (Answer)

high and low pressure systems in the atmosphere

Front (Question)

what does wind influence

Back (Answer)

the transpiration rate of plants

Front (Question)

what is wind and rain caused by

Back (Answer)

as the air rises and cools off, it loses moisture in the form of rain and snow

#10

Front (Question)

what local conditions are rainfall influenced by

Back (Answer)

• gradient • rain-shadow • altitude • global positioning (physiographic factors)

#11

Front (Question)

how can animals escape high temperatures and light intensity

Back (Answer)

by being active at night

#12

Front (Question)

why does temperature go hand in hand with light intensity

Back (Answer)

the brighter the sun, the higher the temperature

#13

Front (Question)

what is estivation (summer sleep)

Back (Answer)

an inactive phase to escape hot, dry conditions

#14

Front (Question)

why do animals go into hibernation (winter sleep)

Back (Answer)

to escape extremely low temperatures

#15

Front (Question)

soil is the medium in which

Back (Answer)

plants grow from which they get their nutrients and into which the decomposers replace these nutrients

#16

Front (Question)

what are the three main types of soil

Back (Answer)

sandy soil, loam and clay soil

#17

Front (Question)

sandy soil

Back (Answer)

particles are bigger temperature varies water retention capacity is poor contains little humus well-aerated

#18

Front (Question)

loam

Back (Answer)

mixture of soil particles rich in humus good water retention capacity well-aerated ideal soil for agriculture

#19

Front (Question)

clay soil

Back (Answer)

very small particles high water retention capacity poorly aerated poor in humus

#20

Front (Question)

what does soil consist of

Back (Answer)

soil particles soil organisms humus air water

#21

Front (Question)

what are arrows used to show in a flow diagram

Back (Answer)

the transfer of energy

#22

Front (Question)

is the pH of a plant important

Back (Answer)

yes

#23

Front (Question)

alkaline

Back (Answer)

occurs in areas with a low rainfall where salts accumulate in the soil

#24

Front (Question)

acidic

Back (Answer)

found in areas with a high rainfall