Answer: d. A bar graph indicating average high and low temperatures for Amanda’s area in the autumn, winter, spring, and summer.
A scientific study requires the use of variables, on the basis of which the outcome of the study can be obtained. An independent variable refers to a variable which can be changed or manipulated in an experiment, such changes will affect the dependent variables. Dependent variables is the outcome of the research, it cannot be changed manually instead the changes occur are because of the changes in the independent variable.
In the given situation, a bar graph indicating average high and low temperatures for Amanda’s area in the autumn, winter, spring, and summer would be an effective scientific model to be incorporated in the Amanda project. This is because of the fact that both independent and dependent variables can be analyzed by this way. The temperature is an independent variable, which changes with respect to the climatic conditions, which represent a particular season like autumn, winter, spring and summer which is a dependent variable.
Answer:
A control group setup in an experiment is used to see if there are other variables in play during the experiment. Say I was to test which type of blood is a shark's favorite, my control would be putting red paint in one of the set ups to see if the shark is just interested in the red color of blood, instead of the other types of blood.
Explanation:
Electrical products
Explanation - Polymers of electrical products can be produced in large quantities and low cost. This type of polymer are non-conductive in nature. However, they very high heat resistance property. Polymers for electrical products can mold itself in various shapes and sizes and also can reach very minute areas.
Polymers vary from one item to another. Polymers for commercial packaging is different from polymers of electrical products. Thus, polymers need to be chosen properly according to the use and its effectiveness.
Answer:
The correct answer is option A) "cause iron in ocean water and terrestrial rocks to rust (oxidize)".
Explanation:
During ancient times, the reproduction success of plants and cyanobacterias led to the accumulation of oxygen gas in the atmosphere. One early consequence of this accumulation was the oxidation of the iron in ocean water and terrestrial rocks. This phenomenon is the cause of banded iron formations, which formed in seawater and sank to the ocean bed.
Answer: North America
Explanation: About 80 million years ago, North America and Europe, Australia and Antarctica, and India and Madagascar followed suit and separated. Over millions more years, the continents moved to their approximate current positions.
