It's called pollution
Pollution is an introduction of contaminants ( whether its chemical or non chemical) that cause an unusual change for the environment.
Pollution can take forms in chemicals, litter on the ground, light , heat, and even noises.
Answer:
c. Semantic and episodio
Explanation: hope this helps!
Answer:
Explanation: A is correct
only men have them
Answer:
See the answer below
Explanation:
<em>The control group in an experimental study is the subject group that is not administered the treatment variable. The control group forms the baseline for comparing the effects produced by the treatment variable on the experimental group.</em>
Thus, in this case, <u>the control group would be the 10 mice that were not exposed to the radio waves.</u>
The independent or the manipulated variable, in this case, is <u>the exposure or otherwise of the mice to the radio waves. </u>
The dependent variable is the actual variable that is going to be measured, otherwise known as the effect variable. In this case, the dependent variable would be <u>the strength of the mice measured by their ability to push the block of wood blocking their food.</u>
Since 8 out 10 mice and 7 out of 10 mice were able to push the wooden block in both the experimental and the control group, <u>Bart's conclusion should reject the hypothesis that the radio waves make mice extra strong</u>.
Bart's experiment can be improved <u>by increasing the number of subject mice in each group</u>. The more the number of subjects, the more the accuracy of the outcome would be.
C: biological systems do not use matter, they transform it
