Answer:
The primary source of carbon dioxide in lake is decomposition of organic matter in the lake. This carbon dioxide is a huge problem for aquatic animals as they face problems during respiration.
Carbon dioxide in a lake can be removed by chemical treatment using liming agents such as sodium carbonate or hydrated lime and quicklime. These liming agents react with carbon dioxide and reduces carbon dioxide and increases the pH and alkanity of the lake.
Answer:
The fossil theory and the distribution of species
Explanation:
Answer:
Observers ahead of the wave observe an apparent increase in wave frequency
Explanation:
This is the Doppler Effect. The frequency of a wave increases when the source approaches the observer and decreases as the source recedes.
B, C, and D are wrong. Observers behind the source notice a decrease in frequency.
Answer:
cell wall and vacuole.
Explanation:
A scientist is using a microscope to observe a type of bacteria. The scientist most likely see cell wall and vacuole.
Answer:
am these is aquard questions hahahah
