Answer:
Both physical and chemical weathering, along with erosion, can change Earth's surface as physical weathering allows breakdown of rock into smaller pieces, these pieces can be move from one place to another through water, wind or ice (erosion), and when the smaller pieces will settle down at a place, rain water can react with the soil or smaller rock pieces to form rock minerals.
For example: Running water, wind, and rapid heating/cooling allows the rocks to break down into smaller pieces or grains (physical weathering), then the small grains are transported and settled away from the source area through wind or river (erosion), and at the end the surface area exposed to air for chemical weathering.
The correct answer is B) An electron beam passes over the specimen's surface and displaces electrons, which are then focused on a screen to form an image.
Answer:
Cell theory is originally presented by Schleiden and Schwann and initially, it has only two points and after some time the third point added but with the discoveries in the field of biotechnology there are many other points that are accepted and known as the modern cell theory.
According to the cell theory, all organisms are made up of one of the multiple cells and arise from the pre-existing cells by the cell division. A cell is a basic unit of structure and function.
Other than these three there are several other points are drive with the help of discoveries regarding discoveries which is helping to form that DNA is the hereditary material that passes all necessary information to the next generation.
Answer:
What is an allele.one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
Explanation:
