I believe the answer should be solar since it is a natural energy source but I can’t be sure.
I think its a and b, but i dont know what kind of rock it is. my guess is a metamorphic or sedimentary.
Answer:
In the mentioned case, the statement that people who exercise for an hour may have lower levels of cholesterol is a hypothesis, and the cholesterol levels in the experiment would be the dependent variable.
Explanation:
A hypothesis is a suggested statement, that is, based upon the previous information, and is used as an initiation point in a scientific investigation.
Any scientific experiments comprise two variables, that is, dependent and independent variables. The independent variable refers to the variable, which is controlled or modified in a scientific experiment in order to determine its influence on the dependent variable.
Answer:
A, 6 water molecules splitting apart
Explanation:
I believe the energy from the sunlight is used to split the water. Then we are left with its electrons, hydrogen, and oxygen. Also, photosynthesis only uses 6H2O molecules, so A seems most logical.
