What is energy? Give the name of the process which converts light energy into chemical energy: breaks down waste organic materials. What is evolution? Give two evidences to support evolution. Explain the term wildlife. Give two reasons for conserving wildlife. Define electromotive force.

here are the solutions to the questions:

(a) Give the name of the process which:

(i) converts light energy into chemical energy:

• Photosynthesis

(ii) breaks down waste organic materials:

• Decomposition

(c) (i) What is evolution?
Evolution is the process by which different kinds of living organisms are believed to have developed from earlier forms during the history of the Earth. It involves changes in the heritable characteristics of biological populations over successive generations.

(c) (ii) Give two evidences to support evolution.

1. Fossil records: Fossils show a progression of life forms over geological time, demonstrating transitional forms and common ancestry.
2. Comparative anatomy: Similarities in the bone structures of different species (homologous structures) suggest a common evolutionary origin.

(d) (i) Explain the term wildlife.
Wildlife refers to all undomesticated animals, plants, and other living organisms that grow or live wild in an area without being introduced by humans. It encompasses all non-cultivated flora and non-domesticated fauna.

(d) (ii) Give two reasons for conserving wildlife.

1. Ecological balance: Wildlife plays crucial roles in ecosystems, such as pollination, pest control, and nutrient cycling, which are essential for maintaining healthy environments.
2. Biodiversity: Conserving wildlife helps preserve the variety of life on Earth, which is vital for ecosystem resilience and provides potential sources for medicine, food, and other resources.

(e) (i) Define electromotive force.
Electromotive force (EMF) is the maximum potential difference across the terminals of a power source (like a battery or generator) when no current is flowing through the external circuit. It represents the energy supplied by the source per unit charge to drive current.