Correct Answer: B. Insurable risks

Correct Answer: A) deficiency or surplus of electrons

Correct Answer: D. 48cm

Correct Answer: A. 1885

Explanation

a. (i) Challenges that make the conservation of resources difficult:

- Limited land area for development leads to the rapid destruction of the natural forest;

- Over grazing/over fishing;

- Poaching/ killing of endangered species;

- Bush burning/poor farming methods;

- Over cultivation of land;

- High demand for timber that has resulted in the felling of trees/indiscriminate cutting of trees for firewood;

- Damming of rivers for hydro-electricity and irrigation has resulted in the alteration of the ecosystem;

- Lack of awareness of the populace and policy makers of the need for conservation/lack of education;

- Improper enforcement of existing laws/poor leadership;

- Forest fire;

- Inadequate funding in conservation;

- Lack of international/local cooperation on conservation;

- Illegal/unlawful exploitation of minerals.

(ii) Ways by which Government ensures the conservation of resources:

- Creation of parks/gardens/wildlife/zoo/reserves;

- Putting in place a chemical and toxic waste dump programmes to avoid water pollution;

- Enactment of conservation laws;

- Enforcement of conservation laws;

- Creating awareness/education through the media;

- Establishment of conservation fund;

- Training of conservation personnel/employing experts to manage natural resources;

- Establishing local and international cooperation;

- Aforestation/planting of trees.

b. Endangered species

- Species whose population has become so small; that it can completely be wiped out/become extinct; if not properly managed.

c. (i) Genotype of child: OO

(ii) Genotype of Father: OO; AO; BO;

d. Importance of genetic variation to plants

- It enables plants to spread to colonies/new areas;

- It may enable plants to survive harsh/adverse conditions/environments;

- It may enable plants to be resistant to diseases;

- It gives rise to varieties of desirable plant species;

- It makes plants produce better fruits/yield;

- It makes plants produce early yield;

Explanation

R = \(U\sqrt{\frac{2H}{g}}\)

= 0.4 \(\sqrt{\frac{2 \times 20}{10}}\)

= 0.8m

Correct Answer: A. 20

Correct Answer: C. Will she send a shirt to him today?

Explanation

The sentence 'She will send a BAG to him today.' is a response to the question 'Will she send a shirt to him today?'. The emphasis on 'BAG' indicates that she will not send a shirt, but a bag to him today.

Correct Answer: B) Digestion

Explanation

The question is asking for the scientific term used to describe the process of breaking down large organic molecules into smaller, simpler, and soluble molecules. The options are Excretion, Digestion, Absorption, Reproduction, and Ingestion. The correct answer is Option B: Digestion. Digestion is the process by which food is broken down into smaller molecules that can be absorbed and used by the body for energy and growth. Digestion occurs in the digestive system, which is made up of organs such as the mouth, esophagus, stomach, small intestine, and large intestine. During digestion, large organic molecules such as carbohydrates, proteins, and lipids are broken down into smaller molecules such as glucose, amino acids, and fatty acids. These smaller molecules can then be absorbed into the bloodstream and transported to cells throughout the body where they can be used for various metabolic processes. It is important to note that digestion is different from ingestion, which refers to the process of taking food into the body. Excretion refers to the elimination of waste products from the body, absorption refers to the process by which nutrients are taken up by the body, and reproduction refers to the process by which organisms produce offspring. In summary, the correct answer to this Biology exam question is Option B: Digestion, which is the process of breaking down large organic molecules into smaller, simpler, and soluble molecules that can be absorbed and used by the body for energy and growth.

Correct Answer: A. government