Questions

Astronomy is the study of planets and heavenly bodies. Historically, astronomy has focused on observations of heavenly bodies. It is a close cousin to astrophysics. Succinctly put, astrophysics involves the study of the physics of astronomy and concentrates on the behavior, properties and motion of objects out there.
 

Tooth Enamel is the hardest and most highly mineralized substance in the human body. It is a tissue and not a bone. This tissue has high mineral content which makes it hardest substance.

Femur and Temporal bone of the skull are the hardest bones of the human body.

Ginans are devotional hymns or poems recited by Shia Ismaili Muslims.Although ginanscan be recited, studied, and listened to by non-Nizari Ismailis, ginans hold a special role in the cultural practice and rituals of Nizari Ismailis, specifically the community of Khojas, a caste of south asians of whom the majority now identify as Nizari Ismaili.

‘Prefer’ is followed by the gerund form of the verb. Thus, ‘spend’ needs to be replaced with ‘spending’ to make the sentence grammatically correct. Thus, the correct sentence would be, ‘Though he is a gifted comedian, he prefers spending his spare time watching horror movies.