Within the visible spectrum, red light has. a the shortest wavelength and the lowest frequency
b the longest wavelength and the lowest frequency
c the longest wavelength and the highest frequency
d the shortest wavelength and the highest frequency

B

Explanation:

It would be B. Think of frequency as the amount of humps in the waves. If it has less ups and down/longer spaces, it would have low frequency.  The wavelength of red is about 600-740.

answer: tributaries flow into rivers.

wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.

tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.

primary succession begins with a bare rock and ends with a forest secondary succession begins after a natural disaster where there is a temporary setback after a forest fire or local destruction, but the surrounding area can fill in