Answer:
We can change the physical state of a substance by heating or cooling it. For example, liquid water can be heated to convert it into the gaseous form i.e steam. Steam can be cooled or condensed to convert it into liquid water.
Liquid water can be cooled to convert it into the solid physical state which will be ice. Ice can be heated to convert it into liquid again. Hence, we can change the physical states by heating or cooling a substance.
Maybe if you insert a picture, we can help you.
<span>It Mitosis, it’s a process that replace every cells in
the human body every few years. The process performed by Mitosis is divided
into stages.
These are:
=> Prophase
=> prometaphase
=> metaphase
=> anaphase
=> telophase
When mitoses starts to do its process, the chromosomes condense and become
visible. This process is very important because it maintains the chromosomal
set of our body. It replaces those sloughed off cells into a renewed one. It
can also help us to heal our body scratches.</span>
Answer: b. only open economies
A closed economy is a self=sufficient economy and does not need trade activity with outside economies. There are no imports and exports.
An open economy is its opposite. It is the type of economy which interact with other economies.
<span>Trade exists in many forms like managerial exchange, technology transfers, and all kinds of goods and services. Economic advantages for citizens of a country with an open economy: 1) Consumers have larger variety of goods and services from which to choose and 2) they have the opportunity to invest their savings outside the country. </span>
People in a secondary group interact on a less personal level than in a g. Since secondary groups are established to perform functions, people’s roles are more interchangeable. A secondary group is one you have chosen to be a part of. They are based e where many people can meet close friends or people they would just call acquaintances. Secondary groups are groups in which one exchanges explicit commodities, such as labour for wages, services for payments, etc. Examples of these would be employment, vendor-to-client relationships, etc.The distinction between Primary and Secondary groups serves to identify between two orders of social organization through analysis of the group relationships and their nature.
