What is the answer?

A student wants to use a stream table to test the influence of water acidity on the erosion rate of a stream. Which variable should be constant in this experiment?

OPTIONS:
- angle of tilt of the table
- acidity of the water
- amount of sediment eroded
- rate that sediment is eroded
angle of tilt of the table
Vad är svaret? En student vill använda ett streambord för att testa vattensurhetsgradens inverkan på erosionshastigheten hos en bäck. Vilken variabel bör vara konstant i detta experiment? Alternativ: - vinklingsvinkel i tabellen - surhet i vattnet - eroderad mängd sediment - hastighet som sedimentet eroderas
What's the answer? A student wants to use a stream table to test the impact of water acidity on the erosion rate of a stream. What variable should be constant in this experiment? Option: - angle angle of the table - acidity in the water - eroded amount of sediment - speed as sediment is eroded
Tabellens lutningsvinkel
Angle of inclination of the table