Answer:
D. Refrigerants
Explanation:
In the United States of America, the agency which was established by US Congress and saddled with the responsibility of overseeing all aspects of pollution, environmental clean up, pesticide use, contamination, and hazardous waste spills is the Environmental Protection Agency (EPA). Also, EPA research solutions, policy development, and enforcement of regulations through the resource Conservation and Recovery Act .
The Clean Air Act Amendments of 1990 prohibit service-related releases of all refrigerants such as R-12 and R-134a. This ban became effective on the 1st of January, 1993.
Refrigerants refers to any chemical substance that undergoes a phase change (liquid and gas) so as to enable the cooling and freezing of materials. They are typically used in air conditioners, refrigerators, water dispensers, etc.
In Excel the sum B2 and B6 simply means that B2 and B6 Numbers are adding to get a Sum, it actually like the normal Calculator, but in Excel it helps to do the calculation of your your data simple and easy, there is no hard work.
Answer:
Spam
Explanation:
If you receive in bulk the unsolicited messages, then that does mean that your inbox is being spammed. This will not harm you but you will lose the Gb that is allocated to your mailbox. And if you will not check then your mailbox will soon be full, and you might not receive some of the important messages that you should reply to immediately.
Answer:
There are two ways to insert the new column or row in the table.
Explanation:
<u>Method I</u>
i. Select the cell where you want to add a new row or column,
ii. Click on Home Tab
iii. Find insert button in Cells Group.
iv. Click on Insert Row or Insert Column button.
By following above mentioned steps we can add a row or column in Excel sheet.
<u>Method II</u>
i. Select the cell where you want to add a new row or column,
ii. Right Click on the selected Cell.
iii. Find Insert Button in drop down menu and Click on Insert.
iv. There are four options in POP menu, choose Entire Row or Entire Column to insert row or column.
Answer:
D. The BIOS is activated by powering on the CPU.
Explanation:
The BIOS is activated by powering on the CPU is the first step in the boot process.
