There is more than one conjunction in the sentence, the word but acts as a coordinating conjunction. Also the words not only and but also act as a correlative conjunction.
Explanation:
Dear friend
how are u ? i heard that u want some advise for starting a garden .so i am here to advise u.
first select a place suitable for gardening . then remove all the weed from there . then dig there . u must have good soil otherwise ur flowers will not harvest . then choose plants carefully . and place the plants , flowers in the proper place . you need to water tgem nicely otherwise they will dry .. and also use some fertiliser .
i have advised u so now u should also write a letter when ur flower are harvested ..
ur lovely friend
ABC
<span>Without placing too implicit faith in the account above given, it must be agreed, that if a worthy pretext for so dangerous an experiment as setting houses on fire (especially in these days) could be assigned in favor of any culinary object, that pretext and excuse might be found in roast pig.</span>
Cite Other Cases That Came To Similar Conclusions.