bruh test

Question 1

atom

Answer 1

smallest units that maintain the chemical properties of the element

Question 2

protons

Answer 2

positively charged particles (atomic number)

Question 3

neutrons

Answer 3

particles lacking electric charge (mass number)

Question 4

isotope

Answer 4

atoms of the same element with differing number of neutrons

Question 5

covalent bond

Answer 5

when electrons are shared between atoms

Question 6

glucose

Answer 6

C6H12O6

Question 7

first law of thermodynamics

Answer 7

energy cannot be created or destroyed

Question 8

second law of thermodynamics

Answer 8

entropy

Question 9

photosynthesis equation

Answer 9

6CO2+6H2O+sun’s energy—–>C6H12O6+6O2

Question 10

cellular respiration

Answer 10

exact opposite of photosynthesis

Question 11

chemosynthesis

Answer 11

transforms inorganic carbon into organic carbon compounds

3H2S

Question 12

igneous rock

Answer 12

rock that forms when magma or lava cools

Question 13

sedimentary rock

Answer 13

formed as sediments are physically pressed together

Question 14

metamorphic rock

Answer 14

forms when any type of rock is subjected to heat or pressure

Question 15

negative feedback loop

Answer 15

exert stabilizing influence

Question 16

positive feedback loop

Answer 16

exert destabilizing effect

Question 17

eutrophication

Answer 17

nutrient overenrichment

Question 18

lithosphere

Answer 18

rock and sediment, uppermost layer

Question 19

atmosphere

Answer 19

air surrounding planet

Question 20

hydrosphere

Answer 20

al water

Question 21

biosphere

Answer 21

planet’s organisms and abiotic factors

Question 22

water cycle

Answer 22

oceans, lakes, etc ——> atmosphere via evaporation and transpiration (release of water through leaves)—–>returns to surface as precipitation

Question 23

carbon cycle

Answer 23

CO2 moves to plants via photosynthesis
carbon moves from plants to animals via food chains
Carbon moves from plants to animals via food chains
moves to soil via decomposition, some becomes fossil fuels
moves from living things to the atmosphere via respiration
Carbon moves from fossil fuels to the atmosphere when fuels are burned
stay in atmosphere or dissolved in sea water
Carbon moves from the atmosphere to the oceans. The oceans, and other bodies of water, absorb some carbon from the atmosphere. The carbon is dissolved into the water.

Question 24

carbon cycle

Answer 24

CO2 moves to plants via photosynthesis
carbon moves from plants to animals via food chains
Carbon moves from plants to animals via food chains
moves to soil via decomposition, some becomes fossil fuels
moves from living things to the atmosphere via respiration
Carbon moves from fossil fuels to the atmosphere when fuels are burned
stay in atmosphere or dissolved in seawater

Question 25

nitrogen fixation

Answer 25

nitrogen is converted to organic/fixed form
rhizobia then cyanobacteria
air in top layer of soil meets n-fixing bacteria

Question 26

nitrification

Answer 26

ammonium—->nitrite—->nitrate via nitrosomonas (1st step) and nitrobacter (2nd step)

Question 27

ammonification

Answer 27

release ammonia after nitrification

Question 28

denitrification

Answer 28

nitrates—->gaseous nitrogen

Question 29

phosphorus cycle

Answer 29

Weathering
Absorption by Plants
Absorption by Animals (bioaccumulation)
Return to the environment through decomposition

Question 30

O horizon

Answer 30

organic litter layer

Question 31

A horizon

Answer 31

topsoil

Question 32

E horizon

Answer 32

eluviated (leeching layer)

Question 33

B horizon

Answer 33

subsoil

Question 34

C horizon

Answer 34

weathered parent material

Question 35

R horizon

Answer 35

rock (parent material)

Question 36

layers of the earth

Answer 36

crust (lithosphere)
mantle (asthenosphere)
core (outer and inner core)