Sustainability means developing practices which protect the environment while also providing for human needs. which of the following changes would be most in achieving sustainable agriculture? a)clearing land for agriculture by cutting down trees instead of burning them b)rotating crops to replenish the soil with nutrients c)tilling the ground to remove weeds and create uniform crops d)growing crops that produce only renewable resources

The correct answer is (D)Growing crops that produce only renewable resources

The by products  of the crops such as corn stovers is used to produce energy without harming the soil quality or increasing the rate of soil erosion. The crops like sunflower, canola can produce bio-oil and bio-fuel which is a renewable fuel. This type of plants should be grown so that renewable resources can be produced. This means that this practice is sustainable as it is protecting the environment and also providing resources for human needs.

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.  

meiosis is the correct answer