Nitrogen is a crucially important component for all life. It is an important part of many cells and processes such as amino acids, proteins and even our DNA. It is also needed to make chlorophyll in plants, which is used in photosynthesis to make their food.
Proton is positive.(+)
Neutron is neutral(0)
Electron is negative(-)
Answer:
Processes of rock formation : Erosion & weathering, dissolution
Explanation:
Rocks are naturally occurring solid mass, or aggregate of minerals / mineraloil matter.
Processes that form rocks :
- Erosion & weathering - breaks down mountains & boulders into sediments
- Dissolution - Chemical weathering, acidic water wears away stones gradually
A theory is an explanation of an aspect of the natural based on careful examination of facts. A theory by its definition can be repeatedly tested. A theory can be changed or replaced because of the following reasons:
New technology is developed that provides more information about the theory. (New technologies can lead to new results).
New experimental methods are designed to test a theory.
New information is discovered that does not support the theory.
