The ingredient that assists clotting of blood is:

• Vitamin A
• Folic acid
• Vitamin D
• Vitamin K

Which one of the following is not an electromagnetic wave?

• Radio wave
• X-ray
• Visible light
• Sound wave

Brass gets discoloured in air due to constant exposure in presence of:

• Aluminium sulphide
• Aluminium phosphide
• Hydrogen sulphide
• Hydrogenated wafers

The primary producer in an ecosystem are:

• Bacteria
• Women
• Men
• Plants

Nitrogen is an essential constituent of all:

• Carbohydrates
• Fats
• Proteins
• Vitamins

Who discovered electromagnetic nature of light?

• Young
• Snell
• Newton
• Maxwell

Persistence of vision is the principle behind:

• Camera
• Binocular
• Cinema
• Periscope

Malaria is transmitted from one person to another by:

• Aedes Mosquito
• Culex Mosquito
• Anopheles Mosquito
• All of the above

Cuscuta is a :

• Parasite
• Saprophyte
• Epiphyte
• Xerophyte

Which one of the following hormone is called "Emergency Hormone"?

• Insulin
• Adrenaline
• Thyroxine
• Vasopressin