A. Dutch astronomer Kuiper in 1950
B. Dutch astronomer Jan Oort in 1950
C. Dutch astronomer Kuiper Oort in 1950
D. French astronomer Jan Oort and Kuiper in 1950
Submitted by: Muhammad Abdullah
Author: Muhammad Abdullah
A. Pluto, Cris, and Yeres
B. Pluto, Bris, and Teres
C. Pluto, Eris, and Ceres
D. Yeres, Teres, Ceres
Submitted by: Muhammad Abdullah
A. 100,000
B. 200,000
C. 300,000
D. 400,000
Submitted by: Muhammad Abdullah
A. The Gort cloud
B. The Oort cloud
C. The Fort cloud
D. The Nort cloud
Submitted by: Muhammad Abdullah
A. Venus
B. Saturn
C. Neptune
D. Earth
Submitted by: Muhammad Abdullah
A. Mars and Jupiter
B. Jupiter and Saturn
C. Mercury and Neptune
D. Venus and Uranus
Submitted by: Muhammad Abdullah
A. Rock, metal, ice and dust
B. Rock and metal
C. Metal and gas
D. Metal, gas and rock
Submitted by: Muhammad Abdullah
A. Dusty snowballs
B. Filthy snowballs
C. Dirty snowballs
D. Impure snowballs
Submitted by: Muhammad Abdullah
A. “coma” around the comet’s nucleus and a long tail that points away from the sun
B. “coma” that points away from the sun and a long tail around the comet’s nucleus
C. Only “coma” around the comet’s nucleus
D. Only a long tail that points away from the sun
Submitted by: Muhammad Abdullah
A. Steam and dust
B. Gas and dust
C. Steam, gas and dust
D. None of the above
Submitted by: Muhammad Abdullah
