Give the biological/technical terms for the following: (a) The tropic movement wherein the tendrils of a pea plant twine around a support. (b) A defect in our eye in which some parts of the object are in focus while the other parts are blurred. (c) The type of waste generated in hospitals and pathological laboratories. (d) The surgical technique for females that can be used to prevent pregnancy. (e) The evolutionary process by which new species arise from the existing one.

Carbon monoxide is dangerous when inhaled in excess. Comment on the statement.

Select and write the two biodegradable wastes from the given list: Styrofoam, Metallic cans, Decaying fruits, Plastic bottles, Newspapers

The diagram given below depicts the climate change on planet Earth. Answer the following questions: (a) Name the climatic phenomenon for the increase in Earth's temperature. (b) Mention one reason for this warming. (c) What measure can be taken to prevent this climate change?

Pick the odd one out and name the category to which the remaining three belong: (a) Prothrombin, Thrombin, Fibrinogen, Albumin (b) Tonsils, Glomerulus, Spleen, Lymph nodes (c) Neutrophils, Basophils, Monocytes, Eosinophils (d) Leaves, Styrofoam, Grass, Cow dung (e) Pulmonary artery, Renal artery, Coronary artery, Hepatic artery

Many nuclear power plants are constructed near water sources. They use water for cooling their machinery and release it back into the water stream. Identify the kind of pollution caused. (a) Radiation pollution (b) Water pollution (c) Industrial pollution (d) Thermal pollution

“Vanishing Greenery; A Growing Urban Crisis” In most of our cities, rapid urbanisation has led to a significant decrease in greenery over the past two decades. As the population increased, the demand for housing, roads and commercial buildings grew, leading to clearing of parks, gardens and natural resources. This has contributed to several problems. (a) Mention one problem caused by the decrease in greenery. (b) How do green plants improve air quality? (c) What role can citizens play in addressing this problem?

What does Swachh Bharat Abhiyan aim to achieve in India? (a) Increase in deforestation to dump waste. (b) Expansion of landfill areas to accommodate more waste. (c) Improved sanitation and solid waste management. (d) Greater industrial waste production.

Rajat Singh was working as a supervisor in a stone quarry where rock, sand and gravel are extracted by techniques like digging, drilling and blasting. As the years rolled by, Rajat started facing a loss in hearing. The high decibel sounds had damaged a part of his internal ear, though the tympanic membrane was intact. (a) What is the collective term for the structures of the internal ear? (b) Name the sensory organ in the cochlea that was damaged. (c) Name the type of pollution responsible for this condition.

Give two examples of water pollutants.

Excessive use of fertilizers in agricultural fields reduces the yield of crops. Justify the statement.

Complete the food chain by mentioning the names of the organisms in (c) and (d):