april 15 quiz Flashcards
what is the mass of our sun
1
what is the chromosphere
gives the sun a reddish glow
what is the photosphere
layer of the sun that emits light
what is the convection zone
gases rise and cool from the sun
radioactive zone
heat moves out from the core
core
the hot centre
sunspots
areas of strong magnetism on the suns surface
all the layers on the sun from outermost to innermost
corona, chromosphere, photosphere, convection zone, radioactive zone, core
what powers the sun
thermonuclear fusion
which elements are involved with thermonuclear fusion in our sun?
hydrogen combine to make helium
what are the 4 energies
Radiant, Light, Thermal, Chemical
define radiant energy
electromagnetic waves from the sun
define light energy
visible to people
define thermal energy
heat
define chemical energy
its stored in chemical bonds
which gases contribute to the greenhouse effect the most
carbon dioxide, methane, nitrous oxide, water vapour
what are the 2 types of ecosystem?
natural(natural) and artificial (made by people)
define biodiversity
the number of species in an ecosystem
define ecology
study of how species interact
define individual
any one living thing
define population
all the individuals of one species in a certain area
define community
all the different populations in one area
define ecosystem
all the biotic and abiotic organisms in a community
define biome
a collection of ecosystems with similar climate, other features, etc
define biosphere
All ecosystems on earth
list all the organised groups from most to least specific
individual, population, community, ecosystem, biome, biosphere
define extinct
a species that no longer exists
define exterpated
a species that no longer exists in a certain area
define endangered
facing imminent extinction
define succession
replacing a community after a disturbance
define photosynthesis
the process of turning light into chemical energy
What does ATP stand for
Adenosine Triphosphate
define producer
autotrophs that use light energy to make their food
define consumer
heterotrophs that eat other organisms
what is the chart with all the stars called
hertz sprung-russel chart