Chemistry

They can both help and hurt the environment. Some chemicals are necessary such as water, minerals, and the air we breathe. The exact effects depend on the exact chemicals. Some chemical waste can harm plants, wildlife, or even humans. Some chemicals such as phosphates can cause excessive red algae to grow in bodies of water. Oil and petrochemicals in the water can kill birds and fish.

Leukemia (also spelled Leucamia, or leukaemia) is an umbrella term for cancer of the blood-forming tissues or bone marrow, characterized by the production too many blood cells. While most people associate leukemia with an excessive number of white blood cells, certain forms of the cancer produce too many immature red blood cells.

There are four main types:

1. Acute lymphocytic leukemia (ALL)

2. Acute myelogenous leukemia (AML)

3. Chronic lymphocytic leukemia (CLL)

4. Chronic myelogenous leukemia (CML)

Both forms of myelogenous leukemia are more common in adults; acute lymphocytic leukemia is the most typical form seen in children.

ALL, the most common cause of death from disease in children, is characterized by rapidly forming immature red blood cells that have a short life cycle. This causes them to crowd the bone marrow, making it impossible to produce healthy red blood cells.

Chronic leukemia, on the other hand, is caused by the slow build up of mature, abnormal blood cells that have a longer-than-normal life span. As a result, the body tends to produce too many new white blood cells.

According to the Leukemia and Lymphoma society, the five-year survival rate for all types of leukemia is approximately 54%; survival rates for lymphocytic leukemia is considerably higher than average, particularly in children.

Leukemia is a type of cancer that affects the bone marrow, the soft, spongy center of the bone that produces blood cells.

in solids , liquids, and gases

Everywhere, all things are chemicals.

After stating a hypothesis, what is the next step that a physicist is most likely to take in answering a question?A.Planning and performing an experiment to answer the question

scientists test and continue to retest both new and old chemicals even if they have been tested before

Chemicals can both cause and fight cancer.

Where are chemicals found

Atoms cannot be divided

The work of some chemists causes environment problems, while the work of others tries to fix problems.

-apex

Finding out that asbestos is dangerous and limiting its use in building materials

The causes of honeybee deaths in beehives

Democritus

We live in a world where chemical products are abundant and indispensable.

All chemicals in the lab are to be considered dangerous. ... Laboratory work can be started immediately upon entering the laboratory even if the instructor is not yet present.