Word Count : 240

---

Palaeoclimatic data are essential for understanding past climate variations and for predicting future climate change. Since direct measurements of climate are available only for the past century and a half, scientists rely on proxy data preserved in natural archives to reconstruct earlier climates. One important source is ice _____ ____ ________ ____ _____ _________ ___.
_____ _____ ____ _______ ______ ________.
_________ ______ _________ ________ _________ ______ ______ _________ ____ _____.
____ ________ ___ _______ ____ ___ ________.
______ ___ _________ _____ _______ __________ ____ ________ ________ _____ _____ ___.
_____ ________ __________ ___ __________.
________ ______ _________ _________ _______ ________ __________.
_________ __________ _________ ____ _____ ______ ____ ________ ______ ___.
____ ______ _______ _______ _____ ___.
_____ ________ _______ _________ _______ _________ ___ ________ ________.
__________ _________ ________ _________ __________ ________ _______ ______.
____ ________ __________ __________ _______ ______ _______ _______ _______ __________ ____ _____.
_________ _____ ________ __________ ______ ________ ______.
______ ____ _______ ____ ______ _______ ________ _______.
______ ____ ___ ___ ___ _________ _____ _____.
______ __________ ___ ____ ________ ______ _______ __________.
_____ __________ __________ ______ ___ ________ __________ _________ _________.
_______ __________ ______ ____ ______ ______ _______ _____.
________ __________ ___ __________ _______ __________ ______ _________.
_____ _______ ________ ________ ____ ____ ________ ________ _______.
_______ ___ _______ __________ ___.
__________ _______ __________ ______ _________ ________ ___ ______ ______.
_______ ____ __________ ______ _________ ____ __________ ______ ___ ________.
_____ _______ _________ ___.
Get Full Answer on WhatsApp