Almost identical eclipses occur after 18 years and 11 days. This cycle is known as__________?

Related Mcqs:

1. Spring tides occur on new moon and full moon days because on these days_____________?

   A. Sun, moon and earth are in a straight line
   B. Sun and earth are at right angles
   C. Sun and moon are at right angles
   D. Earth and moon are at right angles

   Submitted by: Jameel Ahmed Solangi (Larkana

2. Intrinsic Semi-conductor is also known as__________?

   A. Impure-Conductor
   B. Pure-Conductor
   C. Simple Conductor
   D. None of these

   Submitted by: Zahid Ameen

3. Calcium sulphate is known as__________?

   A. Epsom salt
   B. Gypsum salt
   C. Blue vitriol
   D. Potash alum

   Submitted by: ABDUL HAYEE

4. Vitamin B3 is also known as__________?

   A. Thiamine
   B. Riboflavin
   C. Niacin
   D. Retinol

   Submitted by: Irum perveen

5. Cell or Tissue death within a living body is called as__________?

   A. Neutrophilia
   B. Nephrosis
   C. Necrosis
   D. Neoplasia

   Submitted by: Malik Asghar Hussain

6. Vitamin B2 is also called as__________?

   A. Riboflavin
   B. Thiamine
   C. Ascorbic Acid
   D. Niacin

   Submitted by: Irum perveen

7. An element that does not occur in nature but can be produced artificially is__________?

   A. Plutonium
   B. Uranium
   C. Radium
   D. Thorium

   Submitted by: WIQAR AHMAD

8. Earthquakes occur most frequently at __________?

   A. Plate boundaries
   B. Plate surface
   C. Ocean beds
   D. All of the above

   Submitted by: Rashid Mehmood

9. Refraction of sound can occur in:

   A. Water
   B. Air
   C. Both A & B
   D. None of these

   Submitted by: Sami Khan

10. Gales occur when the wind moves at the speed of _____ ?

    A. 35 km/h
    B. 55 km/h
    C. 75 km/h
    D. 100 km/h

    Submitted by: Ali Mallah