—Do you know how fish ___ ? —Well, they ___ oxygen through their gills(鳃).A.swim; take awayB.breathe; take inC.eat; come inD.drink; come back 答案 【答案】 B 【解析】考查动词词义以及动词短语。A.swim 游泳; take away 带走;B.breathe 呼吸; take in 吸收,摄入;C.eat 吃;...
We must find ways to stop pollution.Waste water must be cleaned before it is poured into the river.People shouldn‘t throw away rubbish here and there.We should pick up the garbage around us.We‘d better plant more trees.I‘m sure if we take care of our environment, our world will be...
How do I get more oxygen in my fish pond? A very simple way to add oxygen to the pond is to add an air pump. Sitting at the side of the pond, it will pump air through a small hose to an air stone and bubbles will enter the water. When the bubbles break the water's surface ...
Ian Sterling, founder of Fishlab.com, began his aquarium journey over 30 years ago, driven by a deep fascination for fish and their diverse personalities. His website, Fishlab.com, is dedicated to making fishkeeping accessible and enjoyable, offering beginner-friendly guidance, expert insights, an...
Perlite creates small spaces of air in the coco coir, which prevents overwatering and gets more oxygen to the roots. Cannabis roots love oxygen, and perlite lets them get it while the coco coir makes sure roots always stay wet. Here’s a Seedling Growing in the Above Coco/Perlite Mix ...
The fish need room. They must not be crowded(拥挤). Fish need oxygen(氧气). Fish get it from water in the tank. There must be enough water for all fish in the tank. So the size of the tank is important.. In the tank many people put small plants(植物). They give oxygen to the...
You also want to pay attention to the way the fish is acting. For example, a fish at the top gasping for air indicates there isn’t enough oxygen in the water. These signs and changes in behavior will help you know the best way to save your fish. ...
Why should I clean my fish tank? Fish need oxygen to live. The dirtier your tank gets, the less oxygen your fish is able to find and the more they’ll struggle to survive. In addition, algae can form. which uses up oxygen as it dies. ...
Always keep the water temperature under check. Useanaquarium thermometer if needed to keep track. Also, use a water filter to keep the water clean and supply enough oxygen to the tank. Regularly clean the water to avoid gathering dirt and fungal infections. ...