1) If water _______________ (reach) 100°C, it _______________ (boil). 2) The experiment _______________ (succeed) if you _______________ (follow) the protocol precisely. 3) You _______________ (get) better results if you _______________ (document) every step carefully. 4) The plants _______________ (grow) faster if they _______________ (receive) more sunlight. 5) If the weather _______________ (be) nice, we _______________ (go) hiking on weekends. 6) He _______________ (exercise) outdoors if the temperature _______________ (be) above 15°C. 7) If I _______________ (finish) my research early, I _______________ (go) cycling in the park. 8) You _______________ (feel) relaxed if you _______________ (spend) time in nature. 9) If the enzyme _______________ (be) denatured, it _______________ (lose) its function. 10) She _______________ (practice) yoga outdoors if the weather _______________ (be) warm. 11) If you _______________ (eat) healthy food, you _______________ (have) more energy for your hobbies. 12) The team _______________ (publish) their data if the results _______________ (be) significant. 13) If the birds _______________ (sing) early, it _______________ (mean) the day will be sunny. 14) You _______________ (get) better at playing the guitar if you _______________ (practice) daily. 15) If I _______________ (have) time in the evening, I _______________ (go) for a swim. 16) They _______________ (save) energy if they _______________ (turn off) the lights when not in use. 17) If you _______________ (hike) regularly, your stamina _______________ (improve). 18) The fish _______________ (come) closer if the water temperature _______________ (rise). 19) If the sun _______________ (set) late, we _______________ (play) football after work. 20) She _______________ (read) more books if she _______________ (be) less busy with experiments. 21) If you _______________ (apply) the catalyst correctly, the reaction _______________ (speed up). 22) We _______________ (barbecue) outdoors if the sky _______________ (be) clear. 23) If the computer _______________ (freeze), you _______________ (should restart) it. 24) They _______________ (like) to photograph wildlife if they _______________ (visit) the forest. 25) If the wind _______________ (be) strong, the kite _______________ (fly) higher. 26) I _______________ (feel) happier if I _______________ (walk) in the park every morning. 27) The plants _______________ (flourish) if you _______________ (water) them regularly. 28) If you _______________ (get) enough sleep, you _______________ (concentrate) better during presentations. 29) He _______________ (take) his dog for a walk if the rain _______________ (stop). 30) If the lab equipment _______________ (be) calibrated, the data _______________ (be) accurate. 31) We _______________ (picnic) by the lake if the weather _______________ (be) pleasant. 32) If you _______________ (play) a musical instrument daily, your skills _______________ (improve). 33) The river _______________ (flood) if it _______________ (rain) heavily for several days. 34) She _______________ (meditate) outdoors if she _______________ (want) to relieve stress. 35) If you _______________ (use) the right software, analyzing data _______________ (become) easier. 36) They _______________ (cycle) to work if the roads _______________ (be) safe. 37) If the temperature _______________ (drop), the leaves _______________ (change) color. 38) I _______________ (listen) to music if I _______________ (have) to focus on writing. 39) If you _______________ (reduce) screen time, your sleep quality _______________ (improve). 40) The flowers _______________ (bloom) if spring _______________ (arrive) early. 41) If you _______________ (exercise) regularly, your immune system _______________ (strengthen). 42) They _______________ (camp) near the mountains if the forecast _______________ (be) good. 43) If you _______________ (mix) these chemicals carefully, the solution _______________ (stay) stable. 44) I _______________ (paint) outdoors if I _______________ (find) time during the weekend. 45) If the fish population _______________ (decline), the ecosystem _______________ (suffer). 46) She _______________ (jog) in the morning if it _______________ (not be) too cold. 47) If you _______________ (take) breaks during study, your productivity _______________ (increase). 48) The forest _______________ (recover) if people _______________ (stop) polluting. 49) If I _______________ (cook) at home, I _______________ (eat) healthier meals. 50) We _______________ (play) tennis after work if courts _______________ (be) available. 51) If your data _______________ (be) consistent, the conclusions _______________ (be) more reliable. 52) He _______________ (listen) to podcasts if he _______________ (walk) to work. 53) If the experiment _______________ (be) well-designed, the results _______________ (be) valid. 54) I _______________ (garden) if the weather forecast _______________ (predict) sunshine. 55) They _______________ (hike) in the hills if they _______________ (want) a challenge. 56) If you _______________ (handle) samples properly, contamination _______________ (be) avoided. 57) She _______________ (photograph) sunsets if the sky _______________ (be) clear. 58) If you _______________ (focus) on your breathing, you _______________ (reduce) anxiety. 59) We _______________ (visit) the beach if summer _______________ (arrive) early. 60) If you _______________ (share) your findings, others _______________ (can learn) from your work.

Zero & First Conditionals

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