C is the correct answer. When the country’s population decreases its birth and death both decreases.
Answer:
D
Explanation:
Because you need to check before you go and also I just took the test
Perhaps the most successful way we've been able to use light to transfer information is fiber optics. ... Through rapid changes in the light, you can send highly complex signals down the cable. These are most often used either for high speed internet connections, or for sending sound signals to home theater systems.