Choose all the answers that apply. Which of these statements are true?
A hypothesis is the conclusion of an experiment.
Observation is usually the first step in scientific method.
Dependent and independent variables are the same in an experiment.
Scientists try to understand the phenomena that occur in the environment.
Bias is a judgment that is not based on fact.

surface mining destroys mountain tops, landscapes, forests and wildlife habitats. on top of that, it leads to soil erosion and destruction of agricultural land. the landscape changes can also disrupt river channels and streams, which leads to flooding. which, can destroy plant life and other animals as well.

explanation:

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.