Question
Write down the characters of bee variety suitable for bee keeping.
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The graph given alogside shows the positions of a body at different times. Calculate the speed of the body as it moves from:

Suppose a planet exists whose mass and radius both are half those of the earth. Calculate the acceleration due to gravity on the surface of this planet.
| Distance above ground | Velocity | |
| i. | 5m | 0m/s |
| ii. | 3.2m | 6m/s |
| iii. | 0m | 10m/s |
| Species Property | H2O | CO2 | Na atom | MgCl2 |
| No. of moles | 2 | — | — | 0.5 |
| No. of particles | — | 3.011 × 1023 | — | — |
| Mass | 36g | — | 115g | — |