You can use a plotting compass or iron filings to detect a magnetic field:
1.put a piece of paper over a magnet (this stops the iron filings sticking to the magnet)
2. sprinkle iron filings onto the paper
3.gently tap the paper to spread the filings out
4.observe and record the results
Algae make energy or food is through the process of photosynthesis. Photosynthesis involves the use of sunlight to synthesize carbon dioxide and water to make raw carbohydrates, which is their source of energy.
This is referred to as the mutual pretense awareness. This is different from the open awareness where the patient, the family, and the health care professionals are aware that the patient is dying and open;y acknowledge that reality. There are four awareness contexts which includes; closed awareness, suspected awareness, mutual pretense awareness and open awareness.
Answer:
Since the origin of humans on this planet, they have been trying their best to make their lives easier on this planet. In doing so, human activities have some how heavily damaged the Earth. Many day to day activities of humans are dangerous for the Earth.
Some of the consequences of human activities on the Earth's fresh water are :
Extinction of many aquatic species:
The water consumed by humans comes from the fresh water oceans. As the population of humans is increasing enormously, the water from the oceans is being consumed at dangerous levels. This has caused many species of aquatic animals to become extinct or to be at a verge of extinction as they do not have a habitat to survive or reproduce.
Pollution:
Many heavy industries, house sewage, farmers dispose waste into the fresh water. Hence, killing aquatic animals and polluting the fresh water ecosystems.
C. during winter. They can't be dormant while blooming or when there's rain or in the spring
