Which of these efforts could earn a country a carbon credit ? a. it produces less than the allowed amount of greenhouse gases. b. it refuses to engage in a reforestation project c. it produces more than the allowed amount of greenhouses gases d. it refuses to agree to an emission target

The correct answer is option A, It produces less than the allowed amount of greenhouse gases.

Explanation:

As per the Kyoto protocol, each country has certain number of carbon credits and within the limits of these credits a country is subjected to carry out manufacturing activities with limited pollution. Now in case if a country produces less pollution than allowed  (as entitled by its carbon credit) its carbon credits increases.

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products

regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.