Answer:
Hydrotropism (hydro- "water"; tropism "involuntary orientation by an organism, that involves turning or curving as a positive or negative response to a stimulus") is a plant's growth response in which the direction of growth is determined by a stimulus or gradient in water concentration.
Explanation:
This could help the elephant population rebuild by taking away some of its (predators). Elephants are a keystone species because they dig watering holes, which all animals need. You increase the number of elephants, you increase water availability.
Answer:
The smaller object will move at 30 m/s
Explanation:
From the principle of conservation of linear momentum,
Momentum of objects before collision = momentum of objects after collision.

where
are the masses and velocities of the objects 1 and 2 respectively before collision.



Hence, the object will move at 30 m/s
Answer:
ILLL HELP YOU MARK ME BRAINLIEST AND START SHOWING ME THE QUESTIONS!!!
Explanation:
OKAY!!!!