Choice B is correct.
Solar energy charges the battery or cell; it is then powered through the wires and light comes and heat.
But if the lamp they are talking about doesn't have wire the choose C.
But I am certain it is B
Answer:
b. The water molecule is polar.
Explanation:
Water molecules forming hydrogen bonds with one another. The partial negative charge on the O of one molecule can form a hydrogen bond with the partial positive charge on the hydrogens of other molecules. Water molecules are also attracted to other polar molecules and to ions.
Answer:
B. separating strands of DNA
Answer:
The commercial application of ethylene gas are as follows:
The ethylene gas are important for the early ripening of fruits.
The elongation of shoot can be done by ethylene gas.
The flower stimulation and swelling of stem can be achieved by the use of ethylene gas.
The leaf abscission of ornamental plants can be done by the use of ethylene hormone.
