ENERGY RESOURCE for heat or electricity	Examples of ADVANTAGES	Examples of DISADVANTAGES
from the remains of buried and decayed plant remains	relatively cheap, suitable for big power big stations	very polluting from smog and acid rain, non-renewable fossil fuel (115 years left?), carbon dioxide produced
from plant growth e.g. oils, sugar, wood or from animal dung	renewable from plant and animal resources, can use waste material, less demand on non-renewable resources	pollution can be high but does recycle carbon dioxide, no good for big power stations
, the heat from Sun warms air which rises	renewable, no fuel costs, little pollution, less demand on non-renewable sources, no carbon dioxide produced	unreliable due to variable wind speed, no good large scale
mainly infrared radiation	renewable, no fuel costs, little pollution, less demand on non-renewable resources, no carbon dioxide produced	unreliable due to variable sunlight intensity

Which words might correspond to the missing ? [7i-106]

ENERGY RESOURCE for heat or electricity	Examples of ADVANTAGES	Examples of DISADVANTAGES
from the remains of buried and decayed plant remains	relatively cheap, suitable for big power big stations	very polluting from smog and acid rain, non-renewable fossil fuel (115 years left?), carbon dioxide produced
from plant growth e.g. oils, sugar, wood or from animal dung	renewable from plant and animal resources, can use waste material, less demand on non-renewable resources	pollution can be high but does recycle carbon dioxide, no good for big power stations
, the heat from Sun warms air which rises	renewable, no fuel costs, little pollution, less demand on non-renewable sources, no carbon dioxide produced	unreliable due to variable wind speed, no good large scale
mainly infrared radiation	renewable, no fuel costs, little pollution, less demand on non-renewable resources, no carbon dioxide produced	unreliable due to variable sunlight intensity

Which words might correspond to the missing ? [7i-107]

ENERGY RESOURCE for heat or electricity	Examples of ADVANTAGES	Examples of DISADVANTAGES
from the remains of buried and decayed plant remains	relatively cheap, suitable for big power big stations	very polluting from smog and acid rain, non-renewable fossil fuel (115 years left?), carbon dioxide produced
from plant growth e.g. oils, sugar, wood or from animal dung	renewable from plant and animal resources, can use waste material, less demand on non-renewable resources	pollution can be high but does recycle carbon dioxide, no good for big power stations
, the heat from Sun warms air which rises	renewable, no fuel costs, little pollution, less demand on non-renewable sources, no carbon dioxide produced	unreliable due to variable wind speed, no good large scale
mainly infrared radiation	renewable, no fuel costs, little pollution, less demand on non-renewable resources, no carbon dioxide produced	unreliable due to variable sunlight intensity

Which words might correspond to the missing ? [7i-108]

ENERGY RESOURCE for heat or electricity	Examples of ADVANTAGES	Examples of DISADVANTAGES
from the remains of buried and decayed plant remains	relatively cheap, suitable for big power big stations	very polluting from smog and acid rain, non-renewable fossil fuel (115 years left?), carbon dioxide produced
from plant growth e.g. oils, sugar, wood or from animal dung	renewable from plant and animal resources, can use waste material, less demand on non-renewable resources	pollution can be high but does recycle carbon dioxide, no good for big power stations
, the heat from Sun warms air which rises	renewable, no fuel costs, little pollution, less demand on non-renewable sources, no carbon dioxide produced	unreliable due to variable wind speed, no good large scale
mainly infrared radiation	renewable, no fuel costs, little pollution, less demand on non-renewable resources, no carbon dioxide produced	unreliable due to variable sunlight intensity

Which words might correspond to the missing ? [7i-109]

ENERGY RESOURCE for heat or electricity	Examples of ADVANTAGES	Examples of DISADVANTAGES
NATURAL GAS from the remains of buried and decayed animal remains	reasonably cheap for medium to large scale power stations, quick start up, efficient, convenient to pipe
SUNLIGHT for ELECTRICITY directly using visible light	renewable, no fuel costs, no pollution, less demand on non-renewable resources, good for remote locations
NUCLEAR power from unstable atoms disintegrating	suitable for large scale power stations, no carbon dioxide to add to global warming
HYDROELECTRIC power from rainwater stored behind dam	renewable, no fuel costs, no pollution, no demand on non-renewable resources, fast start up and increase power, no carbon dioxide produced

Which words might correspond to the missing ? [7i-110]

ENERGY RESOURCE for heat or electricity	Examples of ADVANTAGES	Examples of DISADVANTAGES
NATURAL GAS from the remains of buried and decayed animal remains	reasonably cheap for medium to large scale power stations, quick start up, efficient, convenient to pipe
SUNLIGHT for ELECTRICITY directly using visible light	renewable, no fuel costs, no pollution, less demand on non-renewable resources, good for remote locations
NUCLEAR power from unstable atoms disintegrating	suitable for large scale power stations, no carbon dioxide to add to global warming
HYDROELECTRIC power from rainwater stored behind dam	renewable, no fuel costs, no pollution, no demand on non-renewable resources, fast start up and increase power, no carbon dioxide produced

Which words might correspond to the missing ? [7i-111]

ENERGY RESOURCE for heat or electricity	Examples of ADVANTAGES	Examples of DISADVANTAGES
NATURAL GAS from the remains of buried and decayed animal remains	reasonably cheap for medium to large scale power stations, quick start up, efficient, convenient to pipe
SUNLIGHT for ELECTRICITY directly using visible light	renewable, no fuel costs, no pollution, less demand on non-renewable resources, good for remote locations
NUCLEAR power from unstable atoms disintegrating	suitable for large scale power stations, no carbon dioxide to add to global warming
HYDROELECTRIC power from rainwater stored behind dam	renewable, no fuel costs, no pollution, no demand on non-renewable resources, fast start up and increase power, no carbon dioxide produced

Which words might correspond to the missing ? [7i-112]

ENERGY RESOURCE for heat or electricity	Examples of ADVANTAGES	Examples of DISADVANTAGES
NATURAL GAS from the remains of buried and decayed animal remains	reasonably cheap for medium to large scale power stations, quick start up, efficient, convenient to pipe
SUNLIGHT for ELECTRICITY directly using visible light	renewable, no fuel costs, no pollution, less demand on non-renewable resources, good for remote locations
NUCLEAR power from unstable atoms disintegrating	suitable for large scale power stations, no carbon dioxide to add to global warming
HYDROELECTRIC power from rainwater stored behind dam	renewable, no fuel costs, no pollution, no demand on non-renewable resources, fast start up and increase power, no carbon dioxide produced

Which words might correspond to the missing ? [7i-113]

from the up-down movement due to wind	renewable, no fuel costs, no pollution, no demand on non-renewable resources	unreliable, storm damage
from the remains of buried and decayed plant remains	lots of it at the moment, relatively cheap, ok for big power big stations, easy to pipe around	polluting from smog and acid rain, non-renewable fossil fuel (80 years left?), adds to global warming
from the mass movement of water due to gravity pull of the moon	renewable, no fuel costs, little pollution, less demand on non-renewable resources, no carbon dioxide produced	very costly to build, disruption of wildlife habitat, limited suitable estuary locations, cannot generate power when tides are turning (about 10 useful hours?)
from hot rocks underground in active/recent volcanic regions	renewable energy resource, no fuel costs, little pollution, no carbon dioxide	limited suitable locations

Which words might correspond to the missing ? [7i-114]

from the up-down movement due to wind	renewable, no fuel costs, no pollution, less demand on non-renewable sources, no carbon dioxide to increase Greenhouse effect	unreliable due to variable wave height, storm damage
from the remains of buried and decayed plant remains	lots of it at the moment, relatively cheap, ok for big power big stations, easy to pipe around	polluting from smog and acid rain, non-renewable fossil fuel (80 years left?), produces carbon dioxide adding to global warming
from the mass movement of water due to gravity pull of the moon	renewable, no fuel costs, little pollution, less demand on non-renewable resources, no carbon dioxide produced	very costly to build, disruption of wildlife habitat, limited suitable estuary locations, cannot generate power when tides are turning (about 10 useful hours?)
from hot rocks underground in active/recent volcanic regions	renewable energy resource, no fuel costs, little pollution, no carbon dioxide	limited suitable locations

Which words might correspond to the missing ? [7i-115]

from the up-down movement due to wind	renewable, no fuel costs, no pollution, less demand on non-renewable sources, no carbon dioxide to increase Greenhouse effect	unreliable due to variable wave height, storm damage
from the remains of buried and decayed plant remains	lots of it at the moment, relatively cheap, ok for big power big stations, easy to pipe around	polluting from smog and acid rain, non-renewable fossil fuel (80 years left?), produces carbon dioxide adding to global warming
from the mass movement of water due to gravity pull of the moon	renewable, no fuel costs, little pollution, less demand on non-renewable resources, no carbon dioxide produced	very costly to build, disruption of wildlife habitat, limited suitable estuary locations, cannot generate power when tides are turning (about 10 useful hours?)
from hot rocks underground in active/recent volcanic regions	renewable energy resource, no fuel costs, little pollution, no carbon dioxide	limited suitable locations

Which words might correspond to the missing ? [7i-116]

from the up-down movement due to wind	renewable, no fuel costs, no pollution, less demand on non-renewable sources, no carbon dioxide to increase Greenhouse effect	unreliable due to variable wave height, storm damage
from the remains of buried and decayed plant remains	lots of it at the moment, relatively cheap, ok for big power big stations, easy to pipe around	polluting from smog and acid rain, non-renewable fossil fuel (80 years left?), produces carbon dioxide adding to global warming
from the mass movement of water due to gravity pull of the moon	renewable, no fuel costs, little pollution, less demand on non-renewable resources, no carbon dioxide produced	very costly to build, disruption of wildlife habitat, limited suitable estuary locations, cannot generate power when tides are turning (about 10 useful hours?)
from hot rocks underground in active/recent volcanic regions	renewable energy resource, no fuel costs, little pollution, no carbon dioxide	limited suitable locations

Which words might correspond to the missing ? [7i-117]

From the data, what is the spring extension per N weight added? [7k-45]

From the data, what would be the spring length with a weight of 7N on? [7k-46]

From the data, what is the real length of the spring with no weight on? [7k-47]

From the data, what would be the spring length with a weight of 15N on? [7k-48]