Just a couple things
diseases that affect them during pregnancy
birthing troubles
possibly cultural or religious traditions that would make it hard for them to survive.
Answer:
a) Inventor
It was invented by David Alter.
b) What is it?
It is a system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection.
c) What was an impact?
The invention of the telegraph did make the world a lot smaller. It help send information across the country faster than any vehicle. The government also used the invention for military purposes too. The government used this to send information and secret messages to other cities such as the capital during wars.
Great Depression was mostly experienced by most of the countries in the period of 1930. It had demoralizing effects on the economy by dropping levels of the Gross Domestic Product. The personal income, tax revenue had hit the lowest level in the nation.
Giving Over extension of loans by the banks in order to cope the depression was the erroneous federal policy at the time of depression. It also resulted in various other impacts such as people were unable to pay off the loans. This financial disruption made the banks to close.
This led to stocking of money by the people that resulted in the stagnation of the money flow and the loss of confidence to lend and borrow money. This also reduced the value of money causing disequilibrium in the economy.
I believe that eyewitness are not a reliable source to solve a crime or problem. Those eyewitness play a major role in the investigation meaning that they have a advantage to change minds. Some studies think that people over the age of 50 years old aren't reliable for testimony. Though, some might think that study accusation is absurd, it may be correct in some ways.
Hope I could help! :)