Light can travel ___ km in a year.
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Kind of cell that does not have a nucleus
Which of the following characters is recessive in a pea plant?
What is the upward force exerted by water called?
An echo is returned in 3 s. What is the distance of the reflecting surface from the source, considering the speed of sound as 342 ms-1?
What is the value of (cos30° + 1/2) ?
Which of the following does NOT contribute to sparkling of diamonds?
Implantation is the process of