Answer:
Four great mass extinctions.
Explanation:
Phanerozoic era is a period of time that occured in over 542 millon years. It is an era in geological history that can be divided into 3 eras.
a. Paleozic era: This era occured between 542 to 251 million years ago
b. Mesozoic era: This era occured between 251 to 65 million years ago
c. Cenozoic era:This era pictures between 65 millon years ago till this present day.
There has been been four great mass extinctions over the past 500 million years that claimed 40 percent or more of these genera during the Phanerozoic era and they are:
a. Ordovician Mass Extinction
b. Devonian Mass Extinction
c. Permian Mass Extinction.
d. Cretaceous-Tertiary (or the K-T) Mass Extinction.
Honestly this subject is really really hard .. I wish I could help sorry
Answer:
Charles's law, a statement that the volume occupied by a fixed amount of gas is directly proportional to its absolute temperature, if the pressure remains constant.
The volume if the temperature is 330k is 0.0025
If the volume is 0.0022 m^3 then the temperature is 298k
The structure that traps light energy to make food for the plants is the chloroplast.
<h3>WHAT IS CHLOROPLAST:</h3>
- Chloroplast is a double membrane organelle found in the cells of some eukaryotic organisms e.g. plants.
- Chloroplast is the organelle responsible for the occurrence of the photosynthetic process where light energy from the sun is trapped and used to synthesize glucose/sugars.
Therefore, it can be said that the structure that traps light energy to make food for the plants is the chloroplast.
Learn more about chloroplast at: brainly.com/question/11136550