Explanation

Soil salinity is measured using a conductivity meter, which assesses the electrical conductivity of the soil.

Explanation

The fetal presentation is the part of the fetus (such as the head, breech, or shoulder) that enters the birth canal first.

It is a crucial factor in determining the position and orientation of the fetus during labor. 

Explanation

The Group of G-Seven (G7) includes Canada, France, Germany, Italy, Japan, the UK, and the US.

It is a forum for the leaders of these major advanced economies to discuss and coordinate on global economic and political issues.

Explanation

Cyclonic storm Nargis caused the worst national disaster in Myanmar in 2008.

It resulted in widespread devastation, flooding, and significant loss of life approximately 140,000 deaths.

Explanation

The correct sentence is: I wish I could find a way to make amends and secure a better afterlife.

• Option (A): This sentence is grammatically correct. It uses "I wish," which is appropriate for expressing a desire or regret, followed by a subjunctive mood ("could find"). The structure is clear and logical.

Explanation

The body wall of sponges is composed of two main layers: the pinacoderm and the choanoderm.

The pinacoderm is the outermost layer, made up of flat cells called pinacocytes, which cover the external surface of the sponge.

Explanation

Potassium ions play a crucial role in the conduction of nerve impulses.

They help in the repolarization phase of the action potential,

Allowing the nerve cell to reset its membrane potential after the transmission of an impulse

Explanation

Natural rubber is primarily composed of polyisoprene, a polymer made up of isoprene monomers.

Isoprene (2-methyl-1,3-butadiene) is a diene compound that polymerizes to form the long chains found in natural rubber.

Explanation

The European Free Trade Association (EFTA) consists of 4 member countries:

1. Iceland
2. Liechtenstein
3. Norway
4. Switzerland

EFTA aims to promote free trade and economic cooperation in Europe.

Its headquarters are in Geneva, with additional offices in Brussels and Luxembourg.

Founders:

1. Switzerland
2. Norway
3. United Kingdom
4. Sweden
5. Denmark
6. Portugal
7. Austria

Largest city: Oslo

Official working language: English

Official languages of member state 7 languages

1. French
2. German
3. Icelandic
4. Italian
5. Norwegian
6. Romansh
7. Sami

Explanation

Post-translational modifications are processes that occur after protein synthesis, and they are essential for the functional maturation and regulation of proteins.

These modifications, such as:

• adding carbohydrate groups (glycosylation)
• phosphate groups (phosphorylation),
• predominantly take place in the endoplasmic reticulum (ER) 
• the Golgi apparatus.

The ER is involved in the initial modifications and folding of proteins,

While the Golgi apparatus further processes and sorts proteins for their final destinations.