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

Isobars are the lines connecting the places having same:___________?

A. Pressure
B. Rainfall
C. Height
D. Temperature

Which on of the following planets orbits around the sun in a clockwise direction?

A. Earth
B. Mercury
C. Jupiter
D. Venus

Constellations referred to as zodiac, are__________?

A. Imaginary regions that encompass the path of the planets
B. Signs of roman gods
C. A group of stars
D. None of these

‘Black holes’ refers to_______________?

A. Holes occurring in heavenly bodies
B. Bright spots on the sun
C. Collapsing object of high density
D. Collapsing object of low density

The phases of the moon are partially the result of the____________?

A.  changes in the shape of the moon
B.  revolution of the moon around the earth
C. variations in the moon’s gravitation
D.  variations in the speed of rotation of the moon

The top atmosphere of the Earth directly reflects back into space nearly what part of the total amount of sun’s energy coming to it?

A. 10%
B. 20%
C. 30%
D. 50%

What is the mass of the Sun?

A. 1.5×10 power 30 kg
B. 1.98×10 power 30 kg
C. 4.5×10 power 30 kg
D. 8×10 power 30 kg

President of Pakistan announced new medal on 23 march 2018 named as ___________?

A. Sitara-e- juraat
B. Tamgha-e-amtiaz
C. Nishaan-e-haider
D. Tamgha-e-azam

Cyprus is an island in the__________?

A. Mediterranean sea
B. South china sea
C. Red sea
D. Caribbean sea.