Answer:
C
Explanation:
Reducing more volume will mean that the density of gas is higher and therefore it would be at higher pressure. Adding more gas would have the same effect.
Lowering the temperature would mean that the molecules would be moving slower and therefore decreasing pressure
Answer:
C. when a portion of the moon passes through the earth's umbral shadow.
Explanation:
A partial lunar eclipse occurs when the Earth passes between the sun and moon but the celestial bodies are not arranged in a straight line. When that occurs, a small part of the moon's surface is covered by the darkest, central part of the shadow of the Earth called the umbra. The rest is covered by the outer part of the shadow, termed penumbra.
Plant life, especially the trees in the Rain forest absorb the carbon dioxide and produce oxygen so without them, there would be much more carbon dioxide.
In fact we believe that the oxygen in our atmosphere has origin in plant life! Specifically ocean plants. <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>
Answer;
No , abiotic factors can not be composed of cells.
Explanation;
An ecosystem is the lowest level of environmental complexity that includes living (biotic factors)and nonliving factors (abiotic factors).
-Abiotic factors are non living factors such as temperature, climate, sunlight, soil quality, etc that are part of an ecosystem.
-Cells are living and therefore they can not be classified as abiotic factors, but instead cells are biotic factors (living factors).
