<span>A recent study has shown that children who are conceived in the winter months up until March in the US are 10% more likely to develop autism than those conceived in other months. The reason might be that there is a greater occurrence of infectious diseases in the winter months which may expose the mother to pathogens.</span>
Answer:
four years old
Explanation:
Roberta and her peers are most likely four years old. Most children tend to recognize and label stereotypical gender groups at about 2 years of age and at 3 years they are able to recognize their own gender and at age 3 to 4 years they use gender labels quite consistently. However, at age 5 and 6 children become rigid about gender stereotypes and preferences. Roberta and her classmates are likely 4 years of age.
<u>It benefited the society by it increased the middle class as workers became more skilled in industry. It moderated skilled workers to move easier by providing economic independence. It brought wealth to the society.</u>