Explanation

Right use of raising constructions: The report recommends adopting a new policy.

• Explanation: This sentence correctly uses "recommends" followed by a gerund phrase ("adopting a new policy"), which is standard in raising constructions.

Explanation

dsp2 type of hybridization is seen especially in the case of transition metal ions.

The orbitals involved in this type of hybridization are dx2−y2, s and two p orbitals

Explanation

Iodine heptafluoride (IF₇) has a pentagonal bipyramidal structure.

In this geometry, iodine is surrounded by seven fluorine atoms:

• five fluorines are arranged in a plane forming a pentagon,
• and the other two fluorines are positioned above and below this plane,
• forming the axial positions.

This arrangement minimizes electron pair repulsion around the iodine atom.

Explanation

In a reversible adiabatic process, there is no heat exchange with the surroundings, meaning the system is isolated in terms of heat.

Since entropy is a measure of:

• heat energy dispersal
• no heat is exchanged
• the entropy change in a reversible adiabatic process is zero.
  

Explanation

In the taxonomic hierarchy, the rank that comes directly below the class is the order.

The full hierarchy from broader to more specific categories is:

1. Domain
2. Kingdom
3. Phylum
4. Class
5. Order
6. Family
7. Genus
8. Species.

Explanation

In gastropods (such as snails and slugs), the veliger stage is a crucial developmental phase following the trochophore stage.

During the veliger stage, the larva develops a shell and ciliated structures that help it swim.

Explanation

The nacre is continuously deposited onto the inner surface of the shell

The iridescent nacreous layer is commonly known as the mother of pearl

Nacre is secreted by the epithelial cells of the mantle tissue of various molluscs.

The layers of nacre smooth the shell surface and help defend the soft tissues against parasites 

Explanation

Explanation

As children grow older, they show increasing evidence of meta memory which is the knowledge about their memory and how it works.

Explanation

 Incorrect use of the verb modifier The company has nearly doubled its profits last year.

• Explanation: The phrase "last year" requires the past tense, not the present perfect ("has nearly doubled"). Correct: The company nearly doubled its profits last year.