Explanation

• Veins are the blood vessels that carry blood from other parts of the body back to the heart.
• They have one-way valves that prevent blood from flowing backwards and ensure it keeps moving towards the heart.

Explanation

We can measure our blood pressure on our own using a digital blood pressure monitor for automated readings or an instrument called a sphygmomanometer for manual readings.

A sphygmomanometer also known as a blood pressure monitor,  is a device used to measure blood pressure.

Explanation

• Most of our nutrient absorption takes place in the small intestine.
• Where specialized enzymes and absorptive cells (enterocytes) break down.
• It absorb nutrients from food into the bloodstream.

Explanation

When white light passes through a prism, it splits into 7 colors, forming a spectrum known as a rainbow:

1. Red
2. Orange
3. Yellow
4. Green
5. Blue
6. Indigo
7. Violet

The separation of visible light into its different colours is known as dispersion.

Explanation

• ECG (Electrocardiogram) is a test used to measure the electrical activity of the heart.

It is commonly used for the diagnosis of heart-related ailments, such as:

• Arrhythmias (irregular heart rhythms)
• Coronary artery disease
• Cardiac arrests
• Heart failure

Explanation

• Approximately 7–8% of an adult’s body weight
• Approximately 8–9% of a child’s body weight
• Approximately 9–10% of an infant’s body weight

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Blood is a body fluid present in animals that consists of plasma, white blood cells, red blood cells, and platelets.

humans have around 5 liters of blood in their bodies.

The volume of blood is approximately 5.5 liters in each adult male and 4.5 liters in female.

Explanation

Light year refers to speed of light expressed in miles per year

(it is about ten trillion kilometers or six trillion miles).

Light year is a unit of distance.

Light Year: the distance that light can travel in one year. 

The distance light travels in one year is known as the light year.

Explanation

The Sun is a star.

There are lots of stars, but the Sun is the closest one to Earth.

It is the center of our solar system.

The Sun is a hot ball of glowing gases.

The sun is composed of layers made up almost entirely of hydrogen and helium.

AGM 09-2-2023

Explanation

• Galileo Galilei is credited with creating his own improved version of the telescope in 1609, based on the design of the "Dutch perspective glasses".
• Although he did not invent the telescope, his improvements to the design and his astronomical discoveries using the telescope made him a key figure in its history.

Explanation

• A telescope is an instrument that gathers light from distant sources.
• Such as stars, planets, galaxies, and other celestial objects.
• It allowing us to study and observe them in greater detail.