Explanation

Explanation

Direct current is produced when electrons flow constantly in one direction.

It's abbreviated as "DC".

Since direct current flows in one direction only, its electrical pressure or voltage is always oriented in one direction, or "polarity".

Explanation

The mass of the proton is almost 1836 times heavier than that of an electron.

while

A neutron is 1842 times heavier than an electron.

Explanation

Explanation

The cranium is the bony structure that encloses and protects the human brain.

It is also known as the skull.

It forms the upper part of the skull.

It providing a protective casing for the brain.

Explanation

• BCG (Bacille Calmette-Guerin) vaccine is primarily used to protect against Tuberculosis (TB).
• It is typically administered to infants and children in countries with high TB prevalence.

Explanation

A hydrogenation reaction occurs when vegetable oils are converted to fats.

The double bonds of vegetable oils are broken down resulting in a saturated fat i.e. ghee.

Explanation

• A habitat is the natural environment in which a living thing resides.
• Including all the living and non-living factors that affect its survival and growth.

Explanation

Motion occurs when a body changes its position relative to another body or its surroundings.

It can be described in terms of displacement, velocity, and acceleration.

Explanation

• The nervous system is the body system that controls and coordinates the functions of all other organ systems.
• It allowing for integration and regulation of various bodily functions.
• It consists of the brain, spinal cord, nerves, and sensory organs.