Desert locusts are devastating to agriculture because a. they eat insects that play important roles in maintaining crop health b. small swarms can eat the same amount of vegetation in one day as an elephant c. they require massive pesticide use that also harms or destroys crops d. they create dust storms that blanket crops under desert sands

Why is the future for life on earth bleak?

Aschool principal ordered 1,000 pencils. he gave an equal number to each of 7 teachers untill had given out as many as possibe. how many pencils were left?

[ou.01]which of these is the most likely use of an electromagnetic wave which has wavelength shorter than microwaves but longer than visible light? o heat food safely o neat food safely o take images of bones and teeth o transmit radio and cellular phone signals o take images of bones and teeth o transmit radio and cellular phone signals o detect the location of objects which emit heat