pear is pronounced as /pɛər/ and these are different pronunciations of all the options listed above. with this, you can easily pinpoint the word with the same vowel sound as ea

dear----/dɪə/

year----/jɪə/ 

there---/ðɛə/

near---/nɪə/

from the explanation above, you can see that, ''there'' (ðɛə) has the same vowel sound as the underlined letters in pear (pɛər).