The goal was to see if Earth's ecosystems could be successfully manufactured and maintained elsewhere in the galaxy, should we need to bail on this planet.
It was named Biosphere 2 because it was meant to be the second fully self-sufficient biosphere, after the Earth itself
Answer:
b. cell x because it has chloroplast.
Answer:
- Because soil has lost nutrients.
- To provide the right nutrients needed by a particular plant to grow.
Explanation:
Due to regulkar use of soil, the nutrients in the soil have been constantly used by the plants grown on it.
Due to this, soil has lost its value.
Application of fertilizer is one wey through which farmers artificially provide nutrients to the soil.
Therefore, application of fertilizers becomes neccessary for improved crop productivity.
Eliptical (oval shaped), rather than Circular.
