6. A man with type A blood is married to a woman with type o blood. What are ALL of the possible blood types of their
children.
6. A man with type AB blood is married to a woman with type O blood. What
are all the possible blood types of their children?

i might be wrong but i think its a. let me know if i’m right and have a good rest of your day!

meiosis is the correct answer

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.