Explanation

The lungs are the primary organs for gas exchange, where oxygen is absorbed into the blood, and carbon dioxide is expelled.

This process occurs in the alveoli, tiny air sacs in the lungs.

Explanation

Tetanus is a bacterial infection that can cause muscle stiffness and spasms.

It particularly in the jaw muscles, leading to the characteristic symptom of "lockjaw".

Explanation

Metacarpal bones are the five long bones found in the hand, connecting the wrist (carpal bones) to the fingers (phalanges).

They form the structure of the palm and provide support for finger movements.

Explanation

Explanation

• The concept of Carbon Credits originated from the Kyoto Protocol.
• The Kyoto Protocol, adopted in 1997 and entered into force in 2005.
• It introduced mechanisms like the Clean Development Mechanism (CDM) that allow for the trading of carbon credits as a means to reduce greenhouse gas emissions globally.