Some natural processes record the variations in time. For example, the sediments found on the rocks acts to be the great proof of the climate that existed in olden times.
Explanation:
Paleoclimatology is the study of climate records from hundreds to millions of years ago. Information for paleoclimate studies come from natural records. One of the most important natural record from which enormous information about the past climate can be known from the tree ring data. Another source include lake and ocean sediments that are found on the rocks and glaciers.
By measuring the width of Sample of tree rings, sediments , corals and ice, the chemical composition, and physical structure of each layer, scientists can also investigate the conditions present when each layer formed. The data of the natural records can be trusted as these prove to be the greatest source of study of ancient civilizations and how they survived in extreme climatic conditions.
Answer:
B
(The result of DNA replication is two DNA molecules consisting of one new and one old chain of nucleotides. This is why DNA replication is described as semi-conservative, half of the chain is part of the original DNA molecule, half is brand new.)
Diffusion is the movement of particles from high to low concentration
hope this helps..
When an object has a definite shape, that means its a solid. To measure a solid, for example and orange, you can either use a scale or a balance, to measure its weight. You cant measure its height with a tool, but you can with a formula, same goes for length, width, and area inside the orange.