I need some points so sorry pls don’t report I will do anything Answer:
Explanation:
Yearly is the adverb.
An adverb is a word that modifies verbs, adjectives and other adverbs. In this case "yearly" is modifying "migrate" which is a verb.
Answer: to watch
Explanation: The gerund is defined as a form that is derived from a verb but that functions as a noun, in English ending in -ing. The infinitive is defined as the basic form of a verb, without an inflection binding it to a particular subject or tense. So, choose the -ing word (watching) and make it the infinitive (to watch).
DDT was initially used by the military in WW II to control malaria, typhus, body lice, and bubonic plague (1). ... DDT was also used in buildings for pest control. • The reason why DDT was so widely used was because it is effective, relatively inexpensive to manufacture, and lasts a long time in the environment
