Question

FILL IN THE BLANKS

1. _____ was the first man to walk on the moon.


2. ______ belongs to the lizard family and can change colour according to the surface it
sits on.


3. The coloured circular part of the eye surrounding the black pupil is known as _____.


4. ______ is the highest active volcano in the world.


5. Light Amplification by Stimulated Emission of Radiation is commonly known as ____.


6. _______ vaccine is given to children for prevention against tuberculosis.


7. Cricket bats are made from the wood of _____ tree
.

8. ____ is the brightest star in the sky.​

Answer 1

1) Neil Armstrong

2) Chameleons

3) Cornea [NOT SURE]

4) Ojos del Salado 

5) Laser

6) BCG vaccine

7) Willow wood

8) Sirius, also known as the “Dog Star” 

Answer 2

1. Neil Armstrong

Neil Armstrong was the first man to step on moon in the year 1969. Along with his crew members Edwin Aldrin and Michael Collins, Neil landed on the moon in their lunar module "Eagle" on 20 July, 1969. While Aldrin was along with Neil, Collin co-piloted the module.

2. Chameleon

Chameleons are referred to as "Old World Lizards" that can change their body colour according to the environment around them. The reasons vary from hiding from predators to accustoming body heat.

3. Iris

The iris is responsible from controlling the amount of light that enters our eyes. When there is excess light, the iris contracts and while there is dim light, the iris relaxes.

4. Ojos del Salado

Ojos del Salado is the highest active volcano in the world which is located between the borders of Argentina and Chile. It is a stratovolcano with highly dangerous and explosive volcanic activity and measures 6,893 m in height.

5. Laser

Laser is the short form of  Light Amplification by Stimulated Emission of Radiation. A laser produces radiated light and is used in various fields ranging from medicine to technology.

6. BCG

Bacille Calmette-Guerin vaccine helps to prevent the lung-affecting disease, tuberculosis. It is named after three elements - the shape of the bacteris (Bacillus) and its co-founders Calmette and Guerin.

7. Willow

The game of cricket originally evolved in the country of England. The willow trees found in the Norther regions (like England) are known for their sturdy and strong wood and hence they were used to produce the cricket bats.

8. Sirius A

Sirius A which is dead star is the brightest in the night sky and can be seen at dawn and dusk in the northern regions of the Earth.