<span>By using superposition and cross cutting relationships, geologists can determine relative ages of rocks. This means they can determine which rocks are older and which are younger, but not the exact ages of the rocks. </span>
H+ ions are released as water splits
Answer:A. between 20 and 25
Explanation:
b) One with spiny leaves and a thick stem.
Explanation:
- Plants growing in desert face scarcity of water and they need to check transpiration rate.
- To reduce the rate of transpiration the leaves of desert plands are reduced to spines, which resulted in a reduced surface area and negligible number of stomata.
- The Stems of Desert plants are modified to store water to prevent desiccation and hence they are thick and succulent.