Answer:
By volume, oxygen is the second most abundant element in the hydrosphere and troposphere. The troposphere is the lowest part of Earth's atmosphere which is nothing but air, and the hydrosphere is made up of the Earth's water which is full of oxygen at any given moment.
The kind of organism that he found will be Plant.
<h3><u>Explanation:</u></h3>
The cell structure of plants and animals differ in many ways. The cell structure of plants contains a cell wall, the Central Vacuole, Plastids, Chloroplasts, etc. The cell structure has a rigid and strong layer known as cell wall. This forms the outermost layer of the cell.
The Central Vacuole is found in the structure of matured plants. 30% of volume of the cell will be occupied with this. The organelles that helps plants in the process of photosynthesis is plastids. They contain two important things in it such as ribosomes and DNA. The three main types of plastids found in plant cells are chloroplast, chromoplast and leucoplast.
The Solution to your question is C.
Answer:
preparedness.
Preparedness is the tendency to learn some associations more easily, quickly and permanently than others.