THIS IS SCIENCE BTW 1. Describe what has happened to the land on the surface of the earth over the past 425 million years.

2. What types of evidence did the puzzle provide about change on the earth's surface?

Here, i hope im not too late

Explanation:

1.) The theory continental drift describes how plate tectonics explains the formation, movement, and subduction of Earth's plates. At one time, all the continents were one land mass

2.) The puzzle provided evidence of the fossil distribution, the mountain ranges with similar rock layers, and the shape and position of the continent. At one time, all the continents had one land mass.

hope u get it right

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.