One of the following is a water soluble vitamin
Deuterium differs from Hydrogen in having:
Which month of calendar year can lack a new moon
The chemical name of quartz is:
The atmosphere of moon consists of______________
The dominant phase of life cycle in these organism is haploid
Which group of animals has heterogametic females
The biggest species of the cat family is___________
The biggest planet in our solar system is___________
The sunlight can reach a depth of___________meters in the ocean