問題一覧
1
it is the only planet that is able to support life in all it's forms
earth
2
what are the characteristics that makes earth or a planet habitable for humans?
oxygen,water,sunlight,protective atmosphere,gravity,temperature
3
it is a key ingredient to life
oxygen
4
all human beings breathe ______
oxygen
5
it is constantly put into the atmosphere by plants and trees
oxygen
6
because of this earth has a breathable atmosphere
oxygen
7
about ____ of oxygen comes from _________ and ___________.
70%,marine plant,plant like organism
8
it is the dominant class of Marine life providing oxygen
phytoplankton
9
it can be found anywhere,in its three states
water
10
what has earth that other planet don't have?
no other planet has liquid water
11
it is essential because our bodies are ________ water
water,50-70%
12
it can transport nutrients,absorb heat and regulate body temperature
water
13
heat,light, and energy all comes from the sun
sunlight
14
trees and plants need the sun to produce oxygen through the process?
photosynthesis
15
we need this to grow our food,crops and animals
sunlight
16
this is needed for the survival of humans
protective atmosphere
17
it is the layer around the earth that screens out harmful radiation
ozone
18
if there is NO SUN,there would be _______ on earth
no life
19
True or false because of earth's ideal distance from the sun,it receives the perfect amount of heat and light to support life
true
20
earth is the only planet with the _____________ range for there to be liquid water
right temperature
21
it is what holds us down to the planet,without it we would fly out into space
gravity
22
too little gravity results in _________ and _______
weaker bones,muscles
23
__________ results in weaker bones and muscles
too little gravity
24
too much gravity,______ and would require a lot of _____ to move
break bones,energy
25
__________, break bones and would require a lot of energy to move
too much gravity
26
the humanities failure to protect the environment and life here on earth is likely due to the ff.
inability to recognise the full consequences of his or her actions,lack of appreciation of how truly unique the earth is
27
what are the reasons why earth is habitable
oxygen,water,sunlight,protective atmosphere,the sun,gravity
28
what are the spheres of the earth?
atmosphere,biosphere,hydrosphere,geosphere or lithosphere
29
the earth is surrounded by a blanket of air,which we call the
atmosphere
30
life on earth is supported by the
atmosphere,solar energy,and our planets magnetic fields
31
the envelope of gas surrounding the earth changes from the ground up
atmosphere
32
what are the four distinct layers that have been identified
thermal characteristics,chemical composition,movement,density
33
it is primarily composed of nitrogen,oxygen,and trace amounts of neon,helium,methane,krypton,hydrogen,argon,carbon dioxide and water vapor
atmosphere
34
atmosphere is primarily composed of nitrogen-_______,oxygen-______,and trace amounts of neon,helium,methane,.....and water vapor-_____
78%,21%,1%
35
what are the layers of atmosphere
thermosphere,mesosphere,stratosphere,troposphere
36
it is the highest layer of atmosphere,which shuttle and aurora are
thermosphere
37
it is one of the layers of earth where meteors place
mesosphere
38
it is a layer of atmosphere that contains ozone(weather balloons)
stratosphere
39
it is a layer of atmosphere where we live in(e.g. top of the mount everest)
troposphere
40
it is the life zone of the earth and includes all living organisms
biosphere
41
life on earth during its early history between _____ and _____ billion years ago
4.5,3.8
42
it readily distinguishes our planet to the others in the solar system
biosphere
43
bio means______ biotic means______ abiotic means______
life,living parts or components,non living parts of components
44
it includes all the water on earth
hydrosphere
45
____ of the earth is covered by water and only _____ is covered with land
71%,29%
46
71% of the earth is covered by ________ and only 29% is covered with _____
water,land
47
the abundance of ____ on earth is a unique feature that clearly distinguishes our "Blue planet" from others in the solar system
water
48
true or false earth has just the right mass,the right chemical composition,the right atmosphere and the right distance from the sun that permits water to exist mainly as liquid
true
49
.ost water contained in the opens and high heat capacity of this large volume of water(____ million cubic kilometers) buffers the earth surface from large temperature changes such as those observed on the moon
1.35
50
it is the universal solvent and the basis of all life on earth
water
51
water found ON the surface of our planet includes the _________ as well as water from ____ and ______ , ________ , and ______. water found UNDER the surface of our planet includes ___________ and _________
ocean,lakes,rivers,streams, creaks,water trapped in soil,ground water
52
water found ___________ of our planet includes water as well as..... water found ____________ of our planet includes water trapped in soil....
on the surface,under the surface
53
water found in our ________ includes water vapor
atmosphere
54
water found in our atmosphere includes ______
water vapor
55
frozen water on our planet includes _______ and ______
ice caps,glaciers
56
only about ____ of the water on earth is "fresh water" and about _____ of the fresh water is frozen in the form of glacial ice
3%,70%
57
it is the solid outermost shell of a rocky planet
lithosphere
58
it includes the crust and the uppermost layers of the mantle
lithosphere
59
lithosphere includes the ___ and the _________
crust,upper most layers of the mantle
60
the _____ is broken up into different plates
lithosphere
61
they are the building blocks of rock
minerals
62
it is the study of minerals
mineralogy
63
they are aggregates of minerals
rocks
64
give at least 3 examples of minerals
granite,quartz,a pink potassium feldspar
65
it is a naturally occurring, solid crystalline substance,generally inorganic,with a specific chemical composition
mineral
66
what are the atomic structure of minerals
halite,silicates,carbonates,oxides,sulfide,sulfates
67
it is the most abundant minerals in the earth's crust
silicates
68
what are the examples of silicates
olivine,pyroxene,amphibole,muscovite,feldspar
69
what are the most common rocks in the crust
silicates
70
make up of many common rocks including limestone and marble
carbonates
71
it is an important for many metal ores needed to make things
oxide
72
____ are economically usefull
ores
73
it is important of copper,zinc,nickel,lead,iron
sulfides
74
it is minerals with sulfates ion
sulfates
75
identification of menirals:
chemical composition,crystal structure,physical properties
76
microphones and wet chemical methods
chemical composition
77
x ray diffracturr
crystal structured
78
hardness,cleavage,fracture,listers,streak,specific gravity,crystal form
physical properties
79
tendency of minerals to break along flat planar surfaces into geometric that are determined by their crystal structure
cleavage
80
tendency of break along other surfaces(not cleavage)
fracture
81
describes the way light is reflected from the freshly cut out surface of a mineral
luster
82
what are the two types of luster
metallic luster,non metallic luster
83
it is a type of luster wherein it is hard shiny looks like a polished metal
metallic luster
84
it is a type of luster wherein light is unable to penetrate
metallic luster
85
what ate the examples of metallic luster
pyrite,galena,magnetite
86
it is a type of luster that is maybe shiny but some light is able to penetrate
non metallic luster
87
it includes glassy,waxy,pearly and earthly(dull) lusters
non metallic luster
88
what are the examples of non metallic luster
calate,quartz,feldspar
89
it is the color of minerals in the powdered form
streak
90
true or false the test for streak is performed by rubbing a fresh corner of the mineral across a white,unglazed streak plate
true
91
minerals form characteristically shaped crystals
crystal structure
92
it is a regularly shaped solid formed by an ordered pattern of atoms
crystal
93
it is a naturally occurring solid mixture of one or more minerals,or organic matter
rocks
94
they are classified by how they are formed,their composition,and texture
rocks
95
they change overtime through the rock cycle
rocks
96
what is the classification of rocks
each rock type is classified by how they are formed
97
what are the three types of rock
igneous,sedimentary,metomorphic
98
it begins as magma
igneous rocks
99
magma can form when ?
rock is heated,pressure is released,rock changes composition
100
they are light colored rocks rich in elements such as aluminum ,potassium,silicon,and sodium
felsic