1. D. Northern
2. A. True
3. D. The prime minister officially apologized on behalf of all Australians.
4. A. 2.5
5. A. European diseases
any public issue likely has separate groups with their own views
people disagree about which public issues are important
few issues capture all of america's attention
Answer:
verbal
Explanation:
According to my research on studies conducted on child development, I can say that based on the information provided within the question this is done because infants lack verbal skills. Since infants cannot express their thoughts or how they are feeling, researchers need to develop techniques in order to understand their thoughts and feelings.
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