Explanation

A protostome is an animal where the first opening that forms during embryonic development (the blastopore) becomes the mouth.

While the second opening develops into the anus. 

Explanation

Calcium chloride (CaCl₂) is a hygroscopic substance, meaning it absorbs moisture from the air.

It is commonly used as a drying agent in desiccators to keep the environment moisture-free.

Explanation

An ammeter is always connected in series to measure the current flowing through a particular branch of the circuit.

This allows the ammeter to measure the entire current flowing through that branch, providing an accurate reading.

Explanation

Valiantly "بہادری سے" یا "دلیری سے"

Heroically = بہادری سے / دلیر انداز میں

Explanation

Copper has the highest thermal conductivity (386 K m-1 K-1)

Copper has high thermal conductivity.

AGM 25-12-2022

Explanation

Both Laugh and Sneer are followed by preposition at. 

Sneer at means مزاق اڑانا یا طنز کرنا

You should not sneer at the boy.

We must not sneer at elders. 

He was laughing at the poor.

Explanation

Thermionic emission is the process by which electrons are emitted from a hot metal surface.

This occurs when a metal is heated to a high temperature, causing the electrons to gain enough energy to escape from the metal's surface.

This process is also known as thermal electron emission or Edison effect.

Explanation

In the context of the story where Harry appears (possibly a character in a humorous or slice-of-life tale), his philosophy is one of relaxed living and not worrying too much — summed up in the phrase:

“Take it easy away”

This reflects his laid-back, carefree attitude toward life

Explanation

 Lodicules are small, scaly structures found at the base of a grass flower.

They are essentially modified parts of the perianth, which is the non-reproductive part of a flower.

The perianth consists of sepals and petals (or tepals if they are undifferentiated).

In grasses, the perianth is reduced and modified into these small scales called lodicules.

Explanation

When moving with constant velocity, there is no net acceleration acting on the body.

Therefore, the apparent weight remains the same as actual weight — not changed.