The theory of evolution proposed that a series of catastrophes or mass extinctions followed by repopulation could explain why species change over time
Mexico's CBR started later than Sweden's.
in the microbiology world, is used to determine O Capability of a microbe to perform a specific enzymatic activity. O Staining characteristics. O Nucleic acid-base composition of DNA sequences.
The correct answers are 2. arid climate and 4. oil resources
The climate always causes environmental climate, especially arid one, while oil both extraction and production creates environmental problems.
Answer:
A pH indicator is able to tell what level of pH the substance is at. It can tell how acidic a substance is. If a substance has more hydrogen ions than hydroxide ions then it is acidic. If it has more hydroxide ions that hydrogen ions it is an akaline. the acidic scale is from 0 to 14. lower numbers means more acidic and higher numbers means it is an alkaline.
Explanation:
pH stands for potential Hydrogen.
