Correct Answer: D) Rate of photosynthesis

Explanation

A potometer is a scientific apparatus used in Biology to measure the rate of transpiration in plants. Transpiration is the process through which water is lost from the leaves of plants in the form of water vapor. This water is absorbed by the roots of the plant and transported through the stem to the leaves. The potometer is used to measure the rate at which this water is lost from the leaves of the plant. Option A states that the potometer is used to measure osmosis. Osmosis is the process through which water moves from an area of high concentration to an area of low concentration across a semi-permeable membrane. This is different from transpiration which is the loss of water from the leaves of plants. Therefore, option A is incorrect. Option B states that the potometer is used to measure diffusion. Diffusion is the movement of particles from an area of high concentration to an area of low concentration. This is not the same as transpiration which is the loss of water from the leaves of plants. Therefore, option B is incorrect. Option C correctly states that the potometer is used to measure the rate of transpiration. This is the correct answer to the question. Option D states that the potometer is used to measure the rate of photosynthesis. Photosynthesis is the process through which plants produce their food using energy from sunlight. This is not the same as transpiration which is the loss of water from the leaves of plants. Therefore, option D is incorrect. In summary, a potometer is used to measure the rate of transpiration in plants and option C is the correct answer to the question.

Correct Answer: D) social democratic party

Explanation

The correct answer is option D, which is the Social Democratic Party. This means that the Social Democratic Party did not participate in the 1979 general elections in Nigeria. It is important to note that the other options listed, Unity Party of Nigeria, National Party of Nigeria, and Peoples Democratic Alliance, all participated in the 1979 general elections in Nigeria.

It is also worth noting that the 1979 general elections in Nigeria marked the end of military rule and the beginning of the Second Nigerian Republic. The election was contested by five political parties, including the four options listed in the question. The election was won by the National Party of Nigeria and Shehu Shagari was elected as the President of Nigeria.

In summary, the correct answer to the question is option D, which is the Social Democratic Party. It is important to note that the other options participated in the 1979 general elections in Nigeria. The 1979 general election marked the end of military rule and the beginning of the Second Nigerian Republic.

Correct Answer: b.US$ 55

Correct Answer: D. weathering

Correct Answer: A. NEPU

Correct Answer: A. included elected African members

Correct Answer: A. inadequate technology

Correct Answer: B. immoral

Correct Answer: B. longitudinal

Correct Answer: C. changing engine oil