Answer:
minerals and industrial.
Explanation:
Human activity can contaminate water resources by introducing excess minerals such as nitrogen and phosphorous found in industrial and human waste. The agricultural activities such as applying fertilizer and pesticides pollute the water bodies while on the other hand, human waste which is not properly dispose pollute the environment and water bodies that has adverse effect on the environment and its organisms that are present in it.
Answer:
a. Manipulated variable: TEMPERATURE
b. Responding variable: CRICKET CHIRP
c. Controlled variable: Same species of cricket
d. Hypothesis: IF the temperature is increased, THEN crickets will chirp more
Explanation:
Independent variable, also called the manipulated variable, is the variable that is changed or manipulated in an experiment. In this case, the independent variable is the TEMPERATURE.
Dependent or responding variable is the variable that responds to changes made to the independent variable. The dependent variable in this case is CHIRP OF THE CRICKETS.
Controlled variable is the variable that must be kept unchanged for all groups throughout the experiment. The controlled variable in this case is SAME SPECIES CRICKET USED.
Hypothesis is a testable explanation (via experimentation) to an observed problem or a given question. In this investigation involving Melissa, an hypothesis is: IF the temperature is increased, THEN crickets will chirp more.
I wish I could help but I speak english.
Answer:
it is there will be fewer plants and animals because many of them Connor survive in water with high acidity