Answer:
Option A
Explanation:
In a physical change, physical characteristics such as shape, mass, volume, state, phase etc. changes while in a chemical change one substance convert into entirely different substance which may or may not be converted to its original form. Of all the given options, option A represents a physical change. In option A the phase of the substance has changed from solid to gas.
Answer:
Bacteria
Explanation:
Bacterial are prokarotes, that inhabit virtually all habitats..Although some may be pathogenic, ,most bacteria are beneficial. They live in mutual relationship with their living hosts.where they help most in catabolic reactions especially in digestion of food and in nutrient cycle.
They lack membrane bound organelles,they have cell wall made up of peptidoglycan, their nucleus is not bounded with double membrane like Eukaryotes.They vary in shapes, most are spherical in shape, with the shape determined by the cell wall and the cytoskeleton in the cystosol.
Answer:
- Erosion and deposition (shoreline retreat)
Explanation:
Sand moves along a shoreline through hydraulic and mechanical action (friction) of the waves. During this course, two phenomenons usually occur, i.e. erosion followed by deposition.
However, sometimes when the wave action is stronger, it leads to the coastal erosion or the shoreline retreat where a land part is permanently lost and the sand is moved with the waves forming beaches.
The Gogi body is responsible for delivering proteins throughout the cell . But the cell membrane is what controls what comes in or goes out
