問題一覧
1
it is also known as "The People's Power"
solar energy
2
this are filled with water which heats up in the sunlight.
solar thermal panels
3
most of the coal we have on earth today was formed during a time called the ________________ when much of the earth including UK was covered in tropical swamps.
carboniferous period of 360-299 million years ago
4
______ of earth's surface is covered by_____,only less than ______ of global water is __________. Most of ________(______) are locked in _____ and _______. Only less than _____ is available for _________.
67%,water,2.7%,fresh water,fresh water,2.05%,ice caps,glaciers,0.7%,human use
5
______ and _______ are nuclear fuels. __________ do not produce harmful greenhouse gases. __________ is very efficient. __________ produces radioactive waste which is dangerous and has to be seat in containers and buried for thousand of years.
uranium,plutonium,nuclear fuels,nuclear power,nuclear power
6
from what forms oil and gas
phytoplankton
7
they are compromised of two semi-conducting metals
panels
8
plants get their energy from the sun through the process of __________
photosynthesis
9
it is natural substances required by humans for different needs. Give at least 3 examples
natural resources,metals and minerals,water,crops
10
it is one of the low priced renewable energy
wind power
11
this is more reliable than solar and wind power
hydroelectric
12
what animals uses more water based on the table?
bovine,cattle
13
________ is from sunlight. ________ filled with water are used to produce heat. ________ are used to turn sunlight into electricity.
solar energy,solar panels,photovoltaic cells
14
these are made from crops.
biofuels
15
__________ and ______ can be mixed with or replace gasoline and diesel
ethanol,biodiesel
16
it is cheap and plenty. when coal is burnt ,it releases ______,....
coal,carbon dioxide
17
what plants use less water based on the table?
pulses,roots,and tubers
18
______ use a lot of water when compared to growing crops.
meat production
19
this are used to turn sunlight directly into electricity
solar panels or photovoltaic cells
20
it utilises the heat energy from the earth's crust.
geothermal power
21
they are captured sunlight
fossil fuels
22
______ are used in the production of biofuels
fossil fuels
23
it results from the uneven heating of atmosphere by the sun.
wind current
24
it is abundant,requires low maintenance, and is environmentally friendly
solar energy
25
it is the world's most abundant fossil fuel.
coal
26
ex. such as wind,solar power,wave power and geothermal are sustainable as they will not run out and can be reused again and again.
renewable energy
27
it is power generated directly from sunlight.
solar power
28
it is considered as the country's largest renewable energy source.
hydroelectric
29
what are the 5 renewable sources
geothermal power,hydroelectric,wind power,solar cells,biomass
30
_______ trap water in reservoirs. they are very expensive and can harm wildlife.
hydroelectric dams
31
the first battery was invented by _____________,an Italian physicist.
Alessandro volta
32
it is the name of the most efficient cole
anthracite
33
it includes coal,oil,and gas that comes from organic remains of prehistoric organisms.
fossil fuels
34
it is heat energy from the earth
geothermal energy
35
over millions of years and with changing environments layers rock began to build up on top of the peat and become buried.
modern day
36
what are the two non renewable sources?
fossil fuels,electrochemical
37
his invention of battery propelled studies on electricity as it allowed scientists to produce electricity.
Alessandro volta
38
is not a sustainable energy source
fossil fuels
39
they are formed mainly from plants subjected to high temperature and pressure
fossil fuels
40
as the plants died their remains sank to the bottom of the swampy areas,making layers and layers of squashed plant material. This eventually turned into brown spongey material called __________
jurassic period 201-145 million years ago,peat
41
large windmills are called _________. _______ are made up of lots of wind turbines that allows lots of electricity to be generated. _______ are built in windy areas. No wind = _______
wind turbines,wind farms,wind farms,no electricity
42
In the Philippines l,around ____ of our electricity is derived from ____________. In the world, around ______ of our energy is generated by _______________.
69%,fossil fuels,75%,combustion of fossil fuels
43
natural resources such as oil,gas,coal,wood,wind,sunlight,and water can be used to produce energy. Give at least 3 examples
energy resources,coal,wind,waves or water,sunlight,oil and gas
44
it is the main source of energy in the Visayas region. Around _____ of electricity in Visayas is produced from it.
geothermal power,38%
45
what are the two main types of battery
primary or disposable battery,secondary or rechargeable battery
46
batteries,compared to other sources,have low intensity but they are commonly used since they are ________ and __________.
portable,efficient
47
pros and cons of using nuclear energy
does not produce greenhouse gases,produces radioactive waste and is very efficient
48
over _______ of the earth's surface is covered with _____, ________ of which is contained in the five oceans. The _____________, containing _______ of all _________ on the planet is visible at the bottom. __________ can be seen as clouds contributing to the earth's albedo.
two thirds,water,97.2%,antarctic ice sheet,90%,fresh water,atmospheric water vapor
49
pros and cons of coal
is cheap and abundant,releases greenhouse gases
50
______ and _______ store most of the fresh water on earth
iceberg,polar cap
51
ex. are wind power,wave power,solar power,and biofuel can be easily replaced and will not run out.
renewable energy resources
52
____ is plant and animal matter. it can also be burnt to produce heat and electricity
biomass
53
are things like oil,natural gas and coal. They cannot be easily replaced,because they have taken millions of years to form.
non renewable energy resources
54
what are the two types of solar panels that allows us to generate either heat or electricity
solar thermal panels,solar panels or photovoltaic cells
55
inside a battery is an __________, which is a ________ that allows the flow of electrical charge from battery to the device
electrolyte,medium
56
it store chemical energy that can be converted to chemical energy once a device is attached to them
battery
57
pros and cons of using Hydroelectric power
more reliable than solar and wind power,very expensive and can harm wildlife
58
it has been used in centuries to move ships and pump water.
wind
59
the formation of fossil fuels are due to a series of _______________ where the remains of organic life are accumulated in the ocean and are buried to eventually become part of the geosphere
geologic processes
60
it is relatively inexpensive and is readily available
coal
61
it includes coal,gas,oil,and nuclear power
non renewable energy
62
______ products saves energy
recycling
63
Earth's crude _____ and natural _____ is formed from Marine plants and animals that died millions of years ago.
oil,gas
64
what animals uses less water based on the table?
poultry
65
This is the main source of electricity I mindanao,generating around _____ of electricity in the region.
hydroelectric,45%
66
it is a way of harnessing nervy from running water
hydroelectric power
67
_________ and _____ are sometimes known as fossil fuels. _________ are finite resources they will not be around forever . _________ is also considered a non renewable energy source.
coal gas,oil,fossil fuels,nuclear power
68
it is less of an environmental hazard compared to fossil fuels
geothermal power
69
are made from chemical elements silicon
photovoltaic cells
70
Industrialised countries tend to use more water in their _____________. Other countries tend to use more water for ___________ uses.
industrial production,agricultural
71
they are composed of photovoltaic cells or cells that convert light to electricity
solar panels
72
what are the examples of renewable energy resources
wind,solar,geothermal,hydroelectric,biofuel
73
it causes change in frequencies of droughts and floods
climate change
74
what are the two types of energy sources?
non-renewable sources,renewable sources
75
biofuels such as _____ and ______ ate fuels produced from crops.
biodiesel,bioethanol
76
it is turned into jet engine oil,petrol and diesel which are used as a fuel in planes and cars. When _____ and _____ are burnt they release _________ gas into the atmosphere.
crude oil,oil,gas,carbon dioxide
77
it takes advantage of the endless nature of water cycle
hydropower
78
what is the ideal place for the formation 9f coal?
swamps
79
from what formed coal?
ancient land plants
80
it utilizes moving water to turn turbines,power machinery or create electricity.
hydroelectric
81
where do oil and gas form
oceans
82
what are the examples of non renewable energy sources
fossil fuels,electrochemical,oil and gas formation,oil and gas,coal formation,coal,nuclear
83
______ is very volcanic so they uses a lot of geothermal. "geo" means ____. "thermal" means ______. _____ of ice land heating and _____ of electricity comes from geothermal energy.
Iceland,earth,heat,85%,25%
84
it do not release harmful greenhouse gases into the atmosphere
renewable energy resource
85
the energy comes from fossil fuels came from the sun through the process of__________ when the prehistoric organisms are still alive
photosynthesis
86
pros and cons of using wind energy
one of the low priced renewable resources,wind does not always blow when electricity is needed
87
pros of using geothermal
is less of an environmental hazard than fossil fuels
88
it refers to organic matter from plants and animal
biomass
89
solar energy is also known as
The people's power
90
it gives electricity via electochemical react
batteries
91
pros and cons of using solar energy
abundant,requires low maintenance,and environmentally friendly,very expensive,requires rare metals,and requires good amount of space