For the first one I'm not entirely sure, but I would go with both dogs being an effective leader. As for the rest:
Only Spitz is always aggressive
Only Spitz laughs when Curly is killed
Both dogs are big and physically strong
Only Buck began life as a pet
Only Buck becomes aggressive
The Artifact was made a millennium years ago.
Answer:
C
Explanation:
When the telephone rang, Marta was still washing dishes so it becomes present tense.
Talking about "Yesterday" which is why ring--> rang.
Answer:
The answer is "The different types of light".
Explanation:
It sounds exactly like a variable. It is a variable existing independently which is not modified by one of the other variables that attempt for calculation. For example, the age of anyone could be a significant change.
- It is used to modify in a scientific experiment is also an underlying factor. It forms the cause of a result.
- All variables which the experimenter adjusts to test its dependence factor are separate variables, that's why the second choice is correct.
