The controlled experiments are performed by the scientists, when they want to study the changes in the sample on changing a single variable. So, the correct answer is option (b).
In case, all variables are kept same, no changes would be observed in the experiment sample. A controlled experiment can be performed on living thing as well as non living. But, controlled experiment cannot be performed on the things which are influenced by a lot of variables, as they cannot create realistic results. So, the option (a), (c), and (d) are incorrect.
Answer:
it will get weaker give water
Explanation:
feed it bread
Answer:
Men are, in general, more muscular than women. Women are just over half as strong as men in their upper bodies, and about two-thirds as strong in their lower bodies
He discovered the fundamental laws of inheritance through his work on pea plants believe it or not!
A hypothesis is more or less an educated guess. An observation is noticing something and taking note of it. A theory is a possible explanation of how something works, and a law is a well tested statement. The answer is law.
