Show:
4.6
4.9
226-227
4.7
4.10
100
parasite
what is the cause of swimmers itch
100
trenches are formed by two earth plates that slide under one of the two
how are trench plates formed
100
young rivers are faster then older river
what are faster young rivers or older rivers
100
large screens keep out bigger things like garbage and fish
What is the purpose of large screens
100
greenlas glaciers is 5 cn towers tall
how many cn tower is greenland glacier
200
coliform
what is the cause of closing beaches
200
a seamount is an under water volcano
What is a seamount
200
old rivers usually have noticeable flood plains
What has more noticeable flood plains young or old rivers
200
smaller screens stop smaller fish leaves and garbage
What is the purpose of smaller screens
200
the largest sheet of ice is called the polar ice capp
What is the largest sheet of ice on earth
300
when toxin are charged in to the air
water systems are polluted when
300
the three ways for water to enter lakes are precipitation ground water and inlets
who does water enter lakes
300
Yes the red river
is there an old river in Winnipeg
300
Winnipeg gets its water from shoal lake
Where does winnipegs water come from
400
acid rain
Economic losses are caused by
400
guyots were volcanic island
What is a guyot
400
the great divide
What is the continental divide also called