Answer:
2. Scientists use seismometers to measure the earthquake activity that occurs beneath a volcano. They then predict the eruption of that volcano.
Explanation:
The options are:
1. Before a volcano erupts, earthquake activity beneath the volcano decreases.2. Scientists use seismometers to measure the earthquake activity that occurs beneath a volcano. They then predict the eruption of that volcano.3. When a volcano erupts, the amount of carbon dioxide and sulfur dioxide emitted decreases. 4.Scientists measure the amount of these gases to determine the amount of magma present in the volcanic reservoir.
The answer is certainly 2. as seismometers are being used to find out the details of the earthquake activities which occur inside a volcano. And with this information, the volcanologists then predict the eruption of that particular volcano. Hence, the 2nd option does not have any factual errors, and all the others have factual errors.
I think the answer is b
hope this helps :)
D. Fair use. Because you need to give credit to the owner.
Answer:
A private IP address should be implemented but a PAT and a static NAT should be configured for the computers and the intermediate devices respectively.
Explanation:
There are two types of IP addresses, they are public and private addresses. The public address is an IP4 address routable on the internet while the private address is not routable.
Internet service providers do charge for the use of public IP addresses they render, which can be very costly. To reduce the company's expenses on the internet, the company is networked with private addresses and are mapped for network address translation ( NAT) which assigns a public global address to devices accessing the internet.
Answer: Random fluctuations.
Explanation: Time series is a series that has all the points of time in a equal time order.So, there is usually organised and having equal gaps sequence. It can be imposed on many data like real value data, discrete data,continuous data . But there is no space for the space of randomness so, random fluctuations are not predictable in it.Therefore the option (D) is the correct option.