a control helps to increase the reliability of the results. it allows a scientist to compare it to other group(s) in an experiment. if a scientist notices a significant different btwn the control and the other groups, he can logically conclude that the independent variable has an impact on the dependent variable.
a variable is any factor, trait or condition that can exist in differing amounts or types. there are usually three tpes of variables in experiments: the independent, dependent and contolled. the independent variable variable is the one that is changed by the scientists to figure it's affect on something.
Answer:
Hope these help
Explanation:
Matter is important to science
The properties of matter are important.
The metric system helps with measurement.
The tip of a pencil is one centimeter long.
A gram is very lightweight.
Most grocery stores have two-liter cokes.
Tiny rocks may be a millimeter long.
Celsius is one way to understand temperature.
Fahrenheit measures temperature.
Weight is an important factor for our health.
Answer:
a animal that eats plants is a herbivore
Answer: Carbon dioxide and also bring in more oxygen for supporting the aerobic metabolism
Explanation:
The aerobic metabolism is one of the type of process in which the body basically helps in creating the energy in our body by the process of combustion of the fats and carbohydrates in the oxygen presence.
According to the given scenario, when we doing exercise the breath become more faster and at that specific time it is very important to expel the carbon dioxide and then inhale more oxygen for supporting the aerobic metabolism in the our body system.
Therefore, The given answer is correct.
I really hope this helps!
The main dangers worldwide are population growth and resource consumption, climate change and global warming, habitat conversion and urbanisation, invasive alien species, over-exploitation of natural resources and environmental degradation.
