The infection may spread by fecal contamination or respiratory droplets. Chlamydia trachomatis is a sexually transmitted disease (STD) that influences both men and ladies and happens in all age gatherings, however, it's most predominant among young ladies. Chlamydia isn't hard to treat once you know you have it. On the off chance that left untreated, is that as it may, it can prompt progressively genuine medical issues.
Answer:
It was a telegraph
Explanation: 1844, there were signaling systems that enabled people to communicate over distances.
Sputnik was launched in 1957, during the cold war, when there was a high distrust and mutual fear between the US and the Soviet Union. Sputnik had demonstrated the seemingly superior development of US industry, which scared the US, as it showed that their enemy was stronger. Additionally, it fueled the so-called missile gap, that is the belief that the Soviet Union had a lot stronger arsenal of nuclear weapons.
The one that could be predicted about a country where there are many more young children than teenager is : C. the population size will grow quickly over the next 30 years
After 30 years, all those overpopulated children will eventually grow up and enter a reproductive age., which will massively increase the total population.