Can I get some help please

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures

The sea slug that considered to be a photosyntheesizing animal

Agroup of students want to live a healthier life style they decide to use one of these following vegetable oils for cooking apex