Name the types of e.m. radiations which (i) are used in destroying cancer cells, (ii) cause tanning of the skin and (iii) maintain the Earth's warmth.
Write briefly a method of producing any one of these waves.

Name the electromagnetic radiation which is used- (a) to kill cancerous cells in human, (b ) to produce dehydrated fruits.

Cancer is a major cause of death all over the world? (i) What are causes of cancer? (ii) What are methods of detection of cancer? (iii) What are the types of treatment for cancer?

(I) Name any two heminths which are known to the pathogenic to human. (ii) List any two symptoms of the diseases caused by any one of them.

Which one of the following types of medicines is used for treating indigestion? (i) Antibiotics (ii) Analgesic (iii) Antacid (iv) Antiseptic

(a) Name the method of refining which is (i) used to obtain semiconductor of high purity (ii) used to obtain low boiling metal. (b) Write chemical reactions taking place in the extraction of copper from Cu_(2)S .

a) Cancer is one of the most dreaded diseases of humans. Explain 'Contact inhibitions' and Metastasis' with respect to the disease. b) Name the group of genes which have been identified in normal cells that could lead to cancer and how they do so? c) Name any two technique which are used to detect cancers of interorgans? d) Why are cancer pateints often given a-interferon as part of the treatment.