Choose all the right answers. How can insecticides get into your house?

Crops may be coated with chemicals.
Cattle may drink from polluted streams.
The chemicals seep down into ground water.
Run-off from streams may enter reservoirs.
Fish may be contaminated.

Steven pinker states that an important difference exists between men and women in:

Donald is studying the eating habits of all students attending his school. he samples the population by dividing the students into groups by grade level and randomly selecting a proportionate number of students from each group. he then collects data from the sample. which type of sampling is used? select the correct answer below: systematic sampling convenience sampling stratified sampling cluster sampling

What is the main responsiblity of a party oranization?