If I can remember correctly, I believe the control is what id being tested...
High specific heat allows water to resist temp changes
Answer:
B
Explanation:
D is wrong as the compass point toward the geographic south
A is wrong as it can be detected either by permanent magnet or magnetic field of earth
C is not from properties of compass
2 is A the rate decreases as the ph gets higher which is bad. The lower the ph the fast the rate of the enzymes are working
4) would be A as well. The colder the temperature the faster the enzyme will react