P-2 Animal Classification — Science STD 10 — Question

Give one word for “The forest conserved in the name of God.” (Board’s Model Activity Sheet)

Every household produces a lot of material A daily. In one of the methods of disposal B, material A is burned at a very high temperature of about 1000°C in a structure called C. During this process, the organic matter present is removed as D and E whereas F is left behind (which can be dumped in a landfill site).

1. What is material A?
2. Name the method of disposal B.
3. What is structure C known as?
4. What are (i) D (ii) E, and (iii) F?
5. This method is especially suitable for the disposal of materials produced by certain institutions. Name such institutions.

Write a short note.
Anomalous behaviour of water

Write short note: White revolution.

A Mendelian experiment consisted of breeding tall pea plants bearing violet flowers with short pea plants bearing white flowers. The progeny all bore violet flowers, but almost half of them were short. This suggested that the genetic make up (or genotype) of the tall parent can be depicted as:

1. TTWW
2. TTww
3. TtWW
4. TtWw

Give reason for your choice.

Compounds such as alcohol and glucose also contain hydrogen but are not categorised as acids. Describe an activity to prove it.

What are the conventions used in writing a chemical equation?

Give scientific Reason :
Inert gases exist in the form of free atoms.