Explanation

Biogas produced as a result of anaerobic decay of organic matter consists primarily of methane (CH4) and carbon dioxide (CO2).

Biogas can also contain small amounts of other gases, such as:

• Water vapor
• Hydrogen sulfide (H2S
• Siloxanes

Explanation

Magma that is low in silica and high in iron and magnesium is mafic magma.

Mafic magma is also known as basaltic magma

Silica content: Mafic magma has a silica content of roughly 50%. 

Mafic magma contains dark-colored minerals, such as olivine and pyroxene,

Explanation

Explanation

Explanation

Let the two numbers be $x$ and $y$, where $x > y$.

We are given:

$$x+y=40\text{(1)}$$$$x - y = 4 quad text{(2)}$$

Adding equations (1) and (2):

2x=44⟹x=22

Subtracting equation (2) from (1)

$$2y = 36 implies y = 18$$

The numbers are 22 and 18.
The ratio of the numbers is:

x​/y=22​/18

=11/9​

Explanation

Explanation

Solid carbon dioxide, also known as dry ice

It is a cooling agent that has a lower temperature than water ice and is solid

It is extremely cold, with a temperature of −109 °F (−78 °C). 

Explanation

The Full-Screen Reading View in Microsoft Word is designed for easier reading

By hiding toolbars and other screen elements

It provides a clean interface, focusing solely on the document content.

This mode is ideal for reading long documents on the screen.

Explanation

Blogs are personal logs, journal entries, or articles that individuals or organizations post on the web.

They often contain:

• Text
• Images
• Videos
• Links

These are typically updated regularly to share thoughts, ideas, or information with an audience

Explanation

On MS Word, the keyboard shortcut Ctrl+U is used to apply an underline to the selected text,

This is an alternative to clicking the underline icon (U) in the toolbar or ribbon.