The farming methods promoted by the California Ricelands Habitat Partnership are best described as beneficial to both farmers and wetland species because .
a.
migrating waterfowl use flooded rice paddies on their travel routes
b.
foraging birds eat leftover rice and trample the ground making tilling unnecessary
c.
farmers need migrating bird guano as fertilizer
d.
California’s wetlands are dwindling

b.  

Explanation:

The California Ricelands Habitat Partnership is defined as a partnership between conservation groups  and rice farmers in order to maintain the habitat for waterbirds and other wildlife in California's Sacramento Valley.

The partnership was beneficial for both farmers and wetland species because the foraging or waterbirds use to eat the leftover rice and also contribute to the land removing unnecessary tilling in the ground.

Like this, both get benefit from partnership  as birds get food and farmer get rid of tilling.

Hence, the correct option is b.

9.9 years

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.

i think that d. wind is the answer.   i missed the question when i answered a. currents.