Correct Answer: B. decrease

Correct Answer: B) debtors

Correct Answer: A. chamber of commerce

Correct Answer: B. at first

Explanation

The correct answer is B. at first.

• at first means initially or in the beginning, which fits the context of having an initial thought about the source of the bang that was later corrected.

The sentence would read: There was a loud bang, at first we thought it was the television, but it wasn't.

Explanation

Calculation of velocity of fired bullet

Time of flight T = \(\frac{2u sin \theta}{g}\)

25 = \(\frac{2u sin 30}{g}\)

u = 250ms\(^{-1}\)

Correct Answer: D. multiple tiers of government

Correct Answer: B. a restrictive monetary policy

Explanation

The purpose of restrictive monetary policy is to ward off inflation. It's called restrictive because the banks restrict liquidity. It reduces the amount of money and credit that banks can lend. It lowers the money supply by making loans, credit cards and mortgages more expensive.

Correct Answer: A. 100°

Explanation

S\(O\)T = 180\(^o\) - (50 + 50)

= 80\(^o\)

P\(Q\)R = 80\(^o\)

= \(\frac{360^o - 160^o}{2}\) = 100\(^o\)

Correct Answer: C. Admission of new partners

Correct Answer: A) low soil oxygen

Explanation

The question is asking about the condition that encourages denitrification. Denitrification is a process in the nitrogen cycle where nitrate (NO3-) is converted into nitrogen gas (N2) by bacteria, ultimately removing nitrogen from the soil. The options given are A, B, C, and D, and we need to choose the correct one. Option A states that low soil oxygen encourages denitrification, which is the correct answer. When soil oxygen levels are low, it creates anaerobic conditions that favor the growth and activity of denitrifying bacteria. These bacteria use nitrate as an electron acceptor instead of oxygen, converting it into nitrogen gas. Option B, high soil nitrogen, is incorrect because it actually inhibits denitrification by providing an abundant source of nitrogen for plants and other organisms to use. Option C, absence of soil bacteria, is also incorrect because denitrification requires the presence of specific bacteria that are capable of carrying out this process. Option D, lighting and thunderstorm, is also incorrect because although lightning can fix atmospheric nitrogen into soil nitrogen, it does not encourage denitrification. In summary, the correct answer to the question is Option A, low soil oxygen. This creates anaerobic conditions that encourage the growth and activity of denitrifying bacteria that convert nitrate into nitrogen gas.