Synonyms

Help means to assist or support. Aid is a direct synonym.

Active means engaging in physical or mental activity. Alert means quick to notice and react, which is a synonym for being active.

Hard can mean physically solid or emotionally unfeeling. Callous means showing or having an insensitive and cruel disregard for others, which fits the emotional definition of hard.

Cells of simple squamous epithelium are flat with flattened/rounded nucleus. It is also called pavement epithelium due to its tile-like appearance.

Ingenuous is someone who is frank and sincere. Candid means the same.

 Cynical is an adjective used to describe someone who is bitter and distrustful of everyone and is contemptuous.

 Scurrilous means 'highly abusive and derisive'.

Broil means to cook at a very high and intense temperature. Strife means extreme, unfavorable conditions. High, intense heat is generally unfavourable. Therefore, it is the correct choice.

To beam means to shine brightly or to smile radiantly. 'Glow' is the closest synonym among the options.

Touch and tap are related actions involving light contact, though not perfect synonyms. Touch is more general (any contact), while tap specifically means light striking contact. However, among the options, tap is closest. Trivial means insignificant and aid means help, which are unrelated. This question has some ambiguity.

To indicate means to point out or show. 'Denote' is a formal synonym for indicating or signifying something.

Envious means feeling or showing desire for what someone else has. 'Covetous' is a direct synonym for this feeling.